Sample · synthetic

`sample-agent.invalid`

8 capabilities over ARD, A2A, MCP, OpenAPI and WebMCP. The inventory is incomplete. Since the previous observation: 1 removed Breaking, 1 added Non-breaking and 2 other changes (1 Breaking, 1 Needs review).

Observed 26 Aug 2026, 12:00 UTC · source-controlled fixture: no scan, database, or inference · sha256:e5c791…4542

8 capabilities, 4 of them tools or operations. 2 only read. 2 change records.

AI reading, beta. side-effects v1 on sample readings, no model ran, calibrated on MCP and OpenAPI (sample). Only readings above a measured precision count. Counts are tools, not calls: no tool was called.

What an agent can do here

AI readings, beta · Readings on 3 of 3 MCP tools, and on 1 of 1 operation.

Moves money
0
No capability read this way.
Deletes or cancels records
0
No capability read this way.
Sends messages to people
0
No capability read this way.
Changes permissions
0
No capability read this way.
Runs code
0
No capability read this way.
Should ask a person first
1 capability
- create_order0.88

What changed

Breaking Tool input schema changed · $/properties/limit
limit~~was optional~~now required
Why this is breaking
1. What “limit” is now required; before, it could be omitted.
2. Why A caller that previously omitted this property may no longer satisfy the current input schema.
3. Change MCP_TOOL_INPUT_SCHEMA_CHANGED on get_order · $/properties/limit · direction input
4. Rule REQUIRED_PROPERTY_ADDED · compatibility-rules-v12 · json-schema-compatibility-projection-v1
5. Before "optional"
6. After "required"
Breaking Capability removed · capabilities
Why this is breaking
1. Why InterfaceDelta retained reason code “PREVIOUSLY_PRESENT_CURRENTLY_ABSENT_COMPLETE_INVENTORIES”. No additional meaning is assigned to this code.
2. Change CAPABILITY_REMOVED on capability:e7c59cb6728b12f610ed630e · capabilities · direction not applicable
3. Rule PREVIOUSLY_PRESENT_CURRENTLY_ABSENT_COMPLETE_INVENTORIES · compatibility-rules-v12
4. Before {"kind":"mcp.tool","protocolKey":"legacy_lookup"}
5. After null
Non-breaking Capability added · capabilities
Why this is non-breaking
1. Why InterfaceDelta retained reason code “CURRENTLY_PRESENT_PREVIOUSLY_ABSENT_COMPLETE_INVENTORIES”. No additional meaning is assigned to this code.
2. Change CAPABILITY_ADDED on capability:a55ac47a48c9a53129a27418 · capabilities · direction not applicable
3. Rule CURRENTLY_PRESENT_PREVIOUSLY_ABSENT_COMPLETE_INVENTORIES · compatibility-rules-v12
4. Before null
5. After {"kind":"mcp.tool","protocolKey":"search_catalog"}

All 4 changes

Look first

AI reading, beta: AI adds items here; it never removes one.

create_orderShould ask a person first · 0.88

Surfaces

5 protocols checked

ARD	Valid	1 retrieved artifact
A2A	Valid	1 skill
MCP	Valid	2026-07-28 · 3 tools · 1 resource · 1 prompt
OpenAPI	Valid	3.1.2 · 1 operation
WebMCP	Observed	1 declarative form tool · experimental

Exact states, meaning and sources

ARD
observed
Exact state: valid · 1 retrieved artifact
A usable protocol document was retrieved and validated.
Directly observed · https://sample-agent.invalid/.well-known/ai-catalog.json
A2A
observed
Exact state: valid · 1 skill
A usable protocol document was retrieved and validated.
Directly observed · https://sample-agent.invalid/.well-known/agent-card.json · https://sample-agent.invalid/a2a
MCP
observed
Exact state: valid · Revision 2026-07-28 · 3 tools · 1 resource · 1 prompt
A usable protocol document was retrieved and validated.
Directly observed · https://sample-agent.invalid/mcp
OpenAPI
observed
Exact state: valid · Revision 3.1.2 · 1 operation
A usable protocol document was retrieved and validated.
Directly observed · https://sample-agent.invalid/openapi.json
WebMCP
observed
Exact state: observed · 1 declarative form tool · experimental
The origin root HTML, or a followed page, declared WebMCP form tools. InterfaceDelta ran no scripts and submitted no forms.
A declaration does not prove the tool works. WebMCP is an experimental browser capability.
Publisher declared · https://sample-agent.invalid/

8 · inventory incomplete

Inventory incomplete (OpenAPI operations). The displayed count is a lower bound; missing items do not prove removal.

Showing 8 of 8.

Tool and inputs							◇ AI reading, beta · confidence
Read as one of the six effects 1 AI only raises attention: these rows come first.
1 findinglimit, note, query*◇ AIShould ask a person first 0.88						Should ask a person first 0.88	Creates records0.93
`create_order` create order inputs `limit`, `note`, `query` (required) Publisher description for create order. indeterminate Consistency: Input equivalence could not be proven within the supported fragment. `OPENAPI_MCP_INPUT_SCHEMA_ALIGNMENT` AI · beta Creates records 0.93 Should ask a human first 0.88 Contract and evidence Identity and publisher description Publisher declared Publisher description Publisher description for create order. Name create_order Publisher title Publisher declared create order Protocol / kind MCP · mcp.tool Canonical identity InterfaceDelta derived `capability:1af66c9609e17f5fec39a434` Capability fingerprint 15a803890484ca2a682dbaf0a3c12a45fea061aec7948aba47ec14439c3b77fa · capability-semantic-v4 Inventory Complete within recorded bounds · 3 observed Inputs Publisher declared Tool arguments InterfaceDelta derived Input schema fingerprint schema-current Top-level type object Additional properties forbidden Properties `$/limit`Optional · integerenum 1, 10, 25, 5 · ≥ 1 · ≤ 25 `$/note`Optional · null \| string · nullablemaxLength 120 `$/query`Required · stringminLength 1 · maxLength 240 InterfaceDelta derived `UNSUPPORTED_SCHEMA_KEYWORD` · $/properties/query/pattern: pattern Publisher declared Input schema declared by the MCP publisher MCP tools/list inputSchema InterfaceDelta derived Structural overview reconstructed from the retained projection json-schema-compatibility-projection-v1 Outputs Publisher declared Tool result InterfaceDelta derived Output schema fingerprint output-schema-create_order Top-level type object Additional properties forbidden Properties `$/items`Optional · arrayminItems 0 · maxItems 25 `$/result`Required · string Publisher declared Output schema declared by the MCP publisher MCP tools/list outputSchema InterfaceDelta derived Structural overview reconstructed from the retained projection json-schema-compatibility-projection-v1 Deterministic hash of the schema observed during MCP capability discovery. Used to detect structural changes over time. It identifies recorded structure; it is not a signature or trust claim. Access context Directly observed Metadata access publicly observed Document security schemes No scheme retained for this capability source Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived Explicit user endpoint → MCP tools/list Retained source references endpoint:30b1590f0d4d77b1d0d7a5d2 mcp-inventory:https://sample-agent.invalid/mcp:tools Exact cross-interface evidence InterfaceDelta derived Fuzzy matching: no. `OPENAPI_MCP_EXPLICIT_MAPPING`match OpenAPI and MCP carry the same valid explicit publisher-provided capability identifier. Subjects POST /orders · create_order Exact evidence urn:interfacedelta:sample:create-order `OPENAPI_MCP_INPUT_SCHEMA_ALIGNMENT`indeterminate Input equivalence could not be proven within the supported fragment. Subjects POST /orders · create_order Exact evidence application/json · urn:interfacedelta:sample:create-order `OPENAPI_MCP_OUTPUT_SCHEMA_ALIGNMENT`match The explicitly mapped declared output schemas are equivalent within the supported deterministic fragment. Subjects POST /orders · create_order Exact evidence 200 · application/json · urn:interfacedelta:sample:create-order Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed mcp tool inventory entry was returned or retrieved. endpoint:30b1590f0d4d77b1d0d7a5d2 Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. endpoint:30b1590f0d4d77b1d0d7a5d2 InterfaceDelta derived Schema structure was deterministically reconstructed from the retained compatibility projection. json-schema-compatibility-projection-v1 Not observed / not fetched Unsupported or unfetched schema semantics remain explicit limitations. UNSUPPORTED_SCHEMA_KEYWORD Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation. Not observed / not fetched `PUBLISHER_EXAMPLES_NOT_RETAINED` · The current canonical Passport does not retain publisher examples for this capability family.
Read as none of the six 3 Not a clearance.
Breakinglimit, note, query							Reads only0.94
`get_order` get order Breaking inputs `limit` (required), `note`, `query` (required) Publisher description for get order. AI Reads only 0.94 Breaking Tool input schema changed · `$/properties/limit` `limit`~~was optional~~now required Why this is breaking What “limit” is now required; before, it could be omitted. Why A caller that previously omitted this property may no longer satisfy the current input schema. Change `MCP_TOOL_INPUT_SCHEMA_CHANGED` on `get_order` · `$/properties/limit` · direction input Rule `REQUIRED_PROPERTY_ADDED` · compatibility-rules-v12 · json-schema-compatibility-projection-v1 Before `"optional"` After `"required"` Contract and evidence Identity and publisher description Publisher declared Publisher description Publisher description for get order. Name get_order Publisher title Publisher declared get order Protocol / kind MCP · mcp.tool Canonical identity InterfaceDelta derived `capability:67b498e079fcb63a0abae94f` Capability fingerprint b1f655e3415599cce9a6c9c21eedc50ddaf61a10a9884c1364f55e3acc9cda5e · capability-semantic-v4 Inventory Complete within recorded bounds · 3 observed Inputs Publisher declared Tool arguments InterfaceDelta derived Input schema fingerprint schema-get_order-current Top-level type object Additional properties forbidden Properties `$/limit`Required · integerenum 1, 10, 25, 5 · ≥ 1 · ≤ 25 `$/note`Optional · null \| string · nullablemaxLength 120 `$/query`Required · stringminLength 1 · maxLength 240 Publisher declared Input schema declared by the MCP publisher MCP tools/list inputSchema InterfaceDelta derived Structural overview reconstructed from the retained projection json-schema-compatibility-projection-v1 Outputs Publisher declared Tool result InterfaceDelta derived Output schema fingerprint output-schema-get_order Top-level type object Additional properties forbidden Properties `$/items`Optional · arrayminItems 0 · maxItems 25 `$/result`Required · string Publisher declared Output schema declared by the MCP publisher MCP tools/list outputSchema InterfaceDelta derived Structural overview reconstructed from the retained projection json-schema-compatibility-projection-v1 Deterministic hash of the schema observed during MCP capability discovery. Used to detect structural changes over time. It identifies recorded structure; it is not a signature or trust claim. Access context Directly observed Metadata access publicly observed Document security schemes No scheme retained for this capability source Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived Explicit user endpoint → MCP tools/list Retained source references endpoint:30b1590f0d4d77b1d0d7a5d2 mcp-inventory:https://sample-agent.invalid/mcp:tools Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed mcp tool inventory entry was returned or retrieved. endpoint:30b1590f0d4d77b1d0d7a5d2 Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. endpoint:30b1590f0d4d77b1d0d7a5d2 InterfaceDelta derived Schema structure was deterministically reconstructed from the retained compatibility projection. json-schema-compatibility-projection-v1 Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation. Not observed / not fetched `PUBLISHER_EXAMPLES_NOT_RETAINED` · The current canonical Passport does not retain publisher examples for this capability family.
Non-breakinglimit, note, query*							Reads only0.96
Added: `search_catalog` search catalog Non-breaking inputs `limit`, `note`, `query` (required) Publisher description for search catalog. Added since the previous observation. AI Reads only 0.96 Why this is non-breaking Why InterfaceDelta retained reason code “CURRENTLY_PRESENT_PREVIOUSLY_ABSENT_COMPLETE_INVENTORIES”. No additional meaning is assigned to this code. Change `CAPABILITY_ADDED` on `capability:a55ac47a48c9a53129a27418` · `capabilities` · direction not applicable Rule `CURRENTLY_PRESENT_PREVIOUSLY_ABSENT_COMPLETE_INVENTORIES` · compatibility-rules-v12 Before `null` After `{"kind":"mcp.tool","protocolKey":"search_catalog"}` Contract and evidence Identity and publisher description Publisher declared Publisher description Publisher description for search catalog. Name search_catalog Publisher title Publisher declared search catalog Protocol / kind MCP · mcp.tool Canonical identity InterfaceDelta derived `capability:a55ac47a48c9a53129a27418` Capability fingerprint 5d89b57d1f8e509debf382c36303db2e7eff9f4bab4c943a031429b8de5fa741 · capability-semantic-v4 Inventory Complete within recorded bounds · 3 observed Inputs Publisher declared Tool arguments InterfaceDelta derived Input schema fingerprint schema-search_catalog Top-level type object Additional properties forbidden Properties `$/limit`Optional · integerenum 1, 10, 25, 5 · ≥ 1 · ≤ 25 `$/note`Optional · null \| string · nullablemaxLength 120 `$/query`Required · stringminLength 1 · maxLength 240 Publisher declared Input schema declared by the MCP publisher MCP tools/list inputSchema InterfaceDelta derived Structural overview reconstructed from the retained projection json-schema-compatibility-projection-v1 Outputs Publisher declared Tool result InterfaceDelta derived Output schema fingerprint output-schema-search_catalog Top-level type object Additional properties forbidden Properties `$/items`Optional · arrayminItems 0 · maxItems 25 `$/result`Required · string Publisher declared Output schema declared by the MCP publisher MCP tools/list outputSchema InterfaceDelta derived Structural overview reconstructed from the retained projection json-schema-compatibility-projection-v1 Deterministic hash of the schema observed during MCP capability discovery. Used to detect structural changes over time. It identifies recorded structure; it is not a signature or trust claim. Access context Directly observed Metadata access publicly observed Document security schemes No scheme retained for this capability source Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived Explicit user endpoint → MCP tools/list Retained source references endpoint:30b1590f0d4d77b1d0d7a5d2 mcp-inventory:https://sample-agent.invalid/mcp:tools Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed mcp tool inventory entry was returned or retrieved. endpoint:30b1590f0d4d77b1d0d7a5d2 Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. endpoint:30b1590f0d4d77b1d0d7a5d2 InterfaceDelta derived Schema structure was deterministically reconstructed from the retained compatibility projection. json-schema-compatibility-projection-v1 Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation. Not observed / not fetched `PUBLISHER_EXAMPLES_NOT_RETAINED` · The current canonical Passport does not retain publisher examples for this capability family.
1 findingx-request-id, limit, note, query*							Creates records0.95
`POST /orders` Create order over HTTP inputs `x-request-id`, `limit`, `note`, `query` (required) · oauth2 (oauth2) declared indeterminate Consistency: Input equivalence could not be proven within the supported fragment. `OPENAPI_MCP_INPUT_SCHEMA_ALIGNMENT` AI Creates records 0.95 Contract and evidence Identity and publisher description Not observed / not fetched No publisher description retained. Name create_order Publisher title Publisher declared Create order over HTTP Protocol / kind OPENAPI · openapi.operation Canonical identity InterfaceDelta derived `capability:3e461817b1c6a7b486009a05` Publisher tags orders Capability fingerprint 7671e36e3ba9b352e67eaf4b57b74fd9b97c1d80803f3e3b8a2e8d2fc29779ab · capability-semantic-v4 Inventory Incomplete — absence does not prove removal · 1+ observed Inputs Publisher declared Parameter x-request-id InterfaceDelta derived header · optional Input schema fingerprint request-id-schema Top-level type string Additional properties unspecified No named properties in the retained projection. Request body InterfaceDelta derived application/json · required Input schema fingerprint schema-current Top-level type object Additional properties forbidden Properties `$/limit`Optional · integerenum 1, 10, 25, 5 · ≥ 1 · ≤ 25 `$/note`Optional · null \| string · nullablemaxLength 120 `$/query`Required · stringminLength 1 · maxLength 240 InterfaceDelta derived `OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern` · The retained schema slot reports OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern. InterfaceDelta derived `UNSUPPORTED_SCHEMA_KEYWORD` · $/properties/query/pattern: pattern Publisher declared Parameters and request bodies declared by the OpenAPI publisher OpenAPI operation InterfaceDelta derived Structural overviews reconstructed from retained projections json-schema-compatibility-projection-v1 Outputs Publisher declared Response statuses 200, 402 Response 200 InterfaceDelta derived application/json Output schema fingerprint output-schema-create_order Top-level type object Additional properties forbidden Properties `$/items`Optional · arrayminItems 0 · maxItems 25 `$/result`Required · string Publisher declared Response schemas declared by the OpenAPI publisher OpenAPI operation responses InterfaceDelta derived Structural overviews reconstructed from retained projections json-schema-compatibility-projection-v1 Access context Directly observed Metadata access publicly observed Document security schemes oauth2 (oauth2) Operation security declaration operation level present Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. artifact:ad0bcdeee448ac869c66297a Publisher declared Security schemes were declared in the publisher document; this alone does not bind a scheme to the capability. artifact:ad0bcdeee448ac869c66297a Publisher declared An operation-level OpenAPI security requirement was declared. OpenAPI operation security Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived ARD declaration → OpenAPI document → declared operation Retained source references ard_url artifact:ad0bcdeee448ac869c66297a discovery:ard Exact cross-interface evidence InterfaceDelta derived Fuzzy matching: no. `OPENAPI_MCP_EXPLICIT_MAPPING`match OpenAPI and MCP carry the same valid explicit publisher-provided capability identifier. Subjects POST /orders · create_order Exact evidence urn:interfacedelta:sample:create-order `OPENAPI_MCP_INPUT_SCHEMA_ALIGNMENT`indeterminate Input equivalence could not be proven within the supported fragment. Subjects POST /orders · create_order Exact evidence application/json · urn:interfacedelta:sample:create-order `OPENAPI_MCP_OUTPUT_SCHEMA_ALIGNMENT`match The explicitly mapped declared output schemas are equivalent within the supported deterministic fragment. Subjects POST /orders · create_order Exact evidence 200 · application/json · urn:interfacedelta:sample:create-order Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed openapi operation inventory entry was returned or retrieved. artifact:ad0bcdeee448ac869c66297a Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. artifact:ad0bcdeee448ac869c66297a InterfaceDelta derived Schema structure was deterministically reconstructed from the retained compatibility projection. json-schema-compatibility-projection-v1 Not observed / not fetched Unsupported or unfetched schema semantics remain explicit limitations. OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern, UNSUPPORTED_SCHEMA_KEYWORD Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation. Not observed / not fetched `INVENTORY_INCOMPLETE` · The capability came from an incomplete inventory (OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern). Not observed / not fetched `PUBLISHER_DESCRIPTION_NOT_DECLARED` · No publisher description is retained for this capability. Not observed / not fetched `PUBLISHER_EXAMPLES_NOT_RETAINED` · The current canonical Passport does not retain publisher examples for this capability family.
A2A skills 1 Not read by AI.
no inputs							Not read
`research_brief` Research brief oauth2 declared Prepare a structured research brief. Contract and evidence Identity and publisher description Publisher declared Publisher description Prepare a structured research brief. Name Research brief Publisher title Publisher declared Research brief Protocol / kind A2A · a2a.skill Canonical identity InterfaceDelta derived `capability:a09dd5cea939f3eb7bd819ec` Publisher tags sample Publisher examples Prepare a brief about deterministic interfaces. Capability fingerprint 4de713b85d4690ff4c5b8c00d0ed5ab817da4944e67817f4aeeb0b51f9d3a332 · capability-semantic-v4 Inventory Complete within recorded bounds · 1 observed Inputs Publisher declared Declared modes text/plain Publisher declared Accepted input modes declared by the A2A publisher A2A Agent Card skill inputModes Outputs Publisher declared Declared modes application/json Publisher declared Produced output modes declared by the A2A publisher A2A Agent Card skill outputModes Access context Directly observed Metadata access publicly observed Document security schemes oauth2 Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. artifact:5a54acfc64e8d56d9fdc7c95 Publisher declared Security schemes were declared in the publisher document; this alone does not bind a scheme to the capability. artifact:5a54acfc64e8d56d9fdc7c95 Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived Standard A2A discovery → Agent Card → declared skill Retained source references artifact:5a54acfc64e8d56d9fdc7c95 discovery:a2a Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed a2a skill inventory entry was returned or retrieved. artifact:5a54acfc64e8d56d9fdc7c95 Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. artifact:5a54acfc64e8d56d9fdc7c95 Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation.
MCP resources 1 Not read by AI.
no inputs							Not read
`sample://catalog` Public catalog Publisher-provided catalog listing metadata. Contract and evidence Identity and publisher description Publisher declared Publisher description Publisher-provided catalog listing metadata. Name Public catalog Protocol / kind MCP · mcp.resource Canonical identity InterfaceDelta derived `capability:742c590bccb06810c790338f` Capability fingerprint 85a886839e113a8844ee80100727f9200a355c75da8353815f19486867ecf5fa · capability-semantic-v4 Inventory Complete within recorded bounds · 1 observed Outputs Publisher declared Declared modes application/json Publisher declared Resource media type declared by the MCP publisher MCP resources/list mimeType Not observed / not fetched `RESOURCE_CONTENT_NOT_FETCHED` · Only resource listing metadata was observed. resources/read was intentionally not called. Access context Directly observed Metadata access publicly observed Document security schemes No scheme retained for this capability source Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived Explicit user endpoint → MCP resources/list Retained source references endpoint:30b1590f0d4d77b1d0d7a5d2 mcp-inventory:https://sample-agent.invalid/mcp:resources Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed mcp resource inventory entry was returned or retrieved. endpoint:30b1590f0d4d77b1d0d7a5d2 Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation. Not observed / not fetched `PUBLISHER_EXAMPLES_NOT_RETAINED` · The current canonical Passport does not retain publisher examples for this capability family.
MCP prompts 1 Not read by AI.
no inputs							Not read
`brief_template` Brief template Publisher-provided prompt template metadata. Contract and evidence Identity and publisher description Publisher declared Publisher description Publisher-provided prompt template metadata. Name brief_template Publisher title Publisher declared Brief template Protocol / kind MCP · mcp.prompt Canonical identity InterfaceDelta derived `capability:eb645a09f11bcaae55264e24` Capability fingerprint 03f6c178fbc7740ac0ce6d8ca93bd29bde0c0b6c915ca137a23866f9ac0c39e0 · capability-semantic-v4 Inventory Complete within recorded bounds · 1 observed Inputs Publisher declared Arguments declared 1 Publisher declared 1 prompt argument declared MCP prompts/list Not observed / not fetched `PROMPT_ARGUMENT_DETAILS_NOT_RETAINED` · The canonical Passport retains the argument count, not argument names or requiredness. prompts/get was not called. Access context Directly observed Metadata access publicly observed Document security schemes No scheme retained for this capability source Credentials sent No Live auth flow verified No Capability execution verified No Publicly observable metadata does not establish public execution permission. Directly observed Capability metadata was observed through a passive protocol listing or document retrieval. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched Live authentication and capability execution were not verified. Passive scanner boundary Provenance InterfaceDelta derived Explicit user endpoint → MCP prompts/list Retained source references endpoint:30b1590f0d4d77b1d0d7a5d2 mcp-inventory:https://sample-agent.invalid/mcp:prompts Compatibility history Not available for this one-time or unloaded view. Evidence and limitations Directly observed mcp prompt inventory entry was returned or retrieved. endpoint:30b1590f0d4d77b1d0d7a5d2 Publisher declared Display metadata is publisher-provided and is not an InterfaceDelta summary. endpoint:30b1590f0d4d77b1d0d7a5d2 Not observed / not fetched `HISTORY_NOT_LOADED` · Compatibility history is absent for this one-time or non-history presentation. Not observed / not fetched `PUBLISHER_EXAMPLES_NOT_RETAINED` · The current canonical Passport does not retain publisher examples for this capability family.
Removed since the previous observation 1
Breaking	unknown	unknown	unknown	unknown	unknown	unknown	Removed
Removed: `legacy_lookup` Breaking No longer in the observed inventory. Inspection is passive, so whether the endpoint still answers calls is not known. Why this is breaking Why InterfaceDelta retained reason code “PREVIOUSLY_PRESENT_CURRENTLY_ABSENT_COMPLETE_INVENTORIES”. No additional meaning is assigned to this code. Change `CAPABILITY_REMOVED` on `capability:e7c59cb6728b12f610ed630e` · `capabilities` · direction not applicable Rule `PREVIOUSLY_PRESENT_CURRENTLY_ABSENT_COMPLETE_INVENTORIES` · compatibility-rules-v12 Before `{"kind":"mcp.tool","protocolKey":"legacy_lookup"}` After `null`

Read as this effect No reading: unknown Not read as this effect◇ AI readings, beta. A zero is a count, not a clearance.

Publisher descriptions are shown as supplied after bounded display sanitization. Inputs, outputs and constraints come only from retained machine-readable evidence, without inferred intent.

Changes recorded

Tool input schema changed
Breaking
get_order · $/properties/limit
limit~~was optional~~now required
Why this is breaking
1. What “limit” is now required; before, it could be omitted.
2. Why A caller that previously omitted this property may no longer satisfy the current input schema.
3. Change MCP_TOOL_INPUT_SCHEMA_CHANGED on get_order · $/properties/limit · direction input
4. Rule REQUIRED_PROPERTY_ADDED · compatibility-rules-v12 · json-schema-compatibility-projection-v1
5. Before "optional"
6. After "required"
Capability removed
Breaking
capability:e7c59cb6728b12f610ed630e · capabilities
Why this is breaking
1. Why InterfaceDelta retained reason code “PREVIOUSLY_PRESENT_CURRENTLY_ABSENT_COMPLETE_INVENTORIES”. No additional meaning is assigned to this code.
2. Change CAPABILITY_REMOVED on capability:e7c59cb6728b12f610ed630e · capabilities · direction not applicable
3. Rule PREVIOUSLY_PRESENT_CURRENTLY_ABSENT_COMPLETE_INVENTORIES · compatibility-rules-v12
4. Before {"kind":"mcp.tool","protocolKey":"legacy_lookup"}
5. After null
Capability added
Non-breaking
capability:a55ac47a48c9a53129a27418 · capabilities
Why this is non-breaking
1. Why InterfaceDelta retained reason code “CURRENTLY_PRESENT_PREVIOUSLY_ABSENT_COMPLETE_INVENTORIES”. No additional meaning is assigned to this code.
2. Change CAPABILITY_ADDED on capability:a55ac47a48c9a53129a27418 · capabilities · direction not applicable
3. Rule CURRENTLY_PRESENT_PREVIOUSLY_ABSENT_COMPLETE_INVENTORIES · compatibility-rules-v12
4. Before null
5. After {"kind":"mcp.tool","protocolKey":"search_catalog"}
Inventory comparison incomplete
Needs review
artifact:ad0bcdeee448ac869c66297a|openapi.operation · capabilities
Why this needs review
1. Why InterfaceDelta retained reason code “INVENTORY_INCOMPLETE_ON_ONE_OR_BOTH_SIDES”. No additional meaning is assigned to this code.
2. Change INVENTORY_COMPARISON_INDETERMINATE on artifact:ad0bcdeee448ac869c66297a|openapi.operation · capabilities · direction not applicable
3. Rule INVENTORY_INCOMPLETE_ON_ONE_OR_BOTH_SIDES · compatibility-rules-v12
4. Before {"complete":false}
5. After {"complete":false}

A compatibility classification is not a security-severity rating.

Declared agent interfaces

WebMCP form tools · Experimental

Declared in the origin root HTML, or on a followed page where marked. InterfaceDelta ran no scripts and submitted no forms. Script-registered tools and other pages are not observed.

request_quote
Request a synthetic quote for a catalog item.
POST · same origin · Fields: item (required), plan

MCP Apps UI declarations

Tools that declare an interactive UI resource. The UI was not fetched or rendered.

search_catalog ui://sample-agent/catalog-view
Visibility: model, app

OpenAPI payment declarations · Publisher-declared

Operations that declare a payment requirement in their OpenAPI document. Not verified; nothing was paid. Prices are not shown, and the endpoint's own 402 challenge is what actually applies.

POST /orders declares a payment requirement
tempo · charge · usd · price set per request

Consistency

8 of 9 applicable checks match

Cross-interface consistency findings are deterministic evidence. Only explicit identities and mappings are compared; name similarity is never used. A finding about one capability sits on its row.

8 checks matched

ARD declaration and A2A observation refer to https://sample-agent.invalid/.well-known/agent-card.json.
match
ARD_DECLARED_A2A_ARTIFACT · discovery:a2a · discovery:ard
The ARD-declared artifact was observed and validated as OpenAPI 3.1.2.
match
ARD_OPENAPI_ARTIFACT_OBSERVED · discovery:ard · urn:air:sample-agent.invalid:openapi
MCP advertised prompts and the passive list completed.
match
MCP_PROMPTS_ADVERTISEMENT_LIST · mcp-inventory:https://sample-agent.invalid/mcp:prompts
MCP advertised resources and the passive list completed.
match
MCP_RESOURCES_ADVERTISEMENT_LIST · mcp-inventory:https://sample-agent.invalid/mcp:resources
MCP advertised tools and the passive list completed.
match
MCP_TOOLS_ADVERTISEMENT_LIST · mcp-inventory:https://sample-agent.invalid/mcp:tools
OpenAPI and MCP carry the same valid explicit publisher-provided capability identifier.
match
OPENAPI_MCP_EXPLICIT_MAPPING · urn:interfacedelta:sample:create-order
The explicitly mapped declared output schemas are equivalent within the supported deterministic fragment.
match
OPENAPI_MCP_OUTPUT_SCHEMA_ALIGNMENT · 200 · application/json · urn:interfacedelta:sample:create-order
A concrete OpenAPI server declaration resolves to the inspected subject origin.
match
OPENAPI_SERVER_SUBJECT_ALIGNMENT · https://sample-agent.invalid

Record

What is known, identifiers and canonical JSON

Service origin: https://sample-agent.invalid
Explicit MCP endpoint: None supplied
Observed at: 26 Aug 2026, 12:00 UTC
Recorded at: 26 Aug 2026, 12:00 UTC
Fixture observation UUID: 00000000-0000-4000-8000-000000000001
Passport schema: 0.5.0
Semantic projection: passport-semantic-v4
Passport fingerprint: sha256:e5c791a920aa6a7fb2556997d700816f58589b78345c1fde667c79b339df4542
Comparison state: changed
Compatibility rules: compatibility-rules-v12
Change-set projection: passport-change-set-v1
Change-set fingerprint: sha256:5e744e8d6fab7bfc6f425fe24ab131c12335046a785d04f8874daeace77f6ca9

What is known, and why

These labels identify where a fact came from. They are not trust scores or certifications.

ARD — Valid
Directly observed
A usable protocol document was retrieved and validated.
https://sample-agent.invalid/.well-known/ai-catalog.json · valid
A2A — Valid
Directly observed
A usable protocol document was retrieved and validated.
https://sample-agent.invalid/.well-known/agent-card.json, https://sample-agent.invalid/a2a · valid
MCP — Valid
Directly observed
A usable protocol document was retrieved and validated.
https://sample-agent.invalid/mcp · valid
OpenAPI — Valid
Directly observed
A usable protocol document was retrieved and validated.
https://sample-agent.invalid/openapi.json · valid
WebMCP — Observed
Publisher declared
The origin root HTML, or a followed page, declared WebMCP form tools. InterfaceDelta ran no scripts and submitted no forms.
https://sample-agent.invalid/ · observed
What this does not mean: A declaration does not prove the tool works. WebMCP is an experimental browser capability.
Webmcp.Root-Html document
Directly observed
InterfaceDelta retrieved the document within the passive observation boundary.
https://sample-agent.invalid/ · observed
What this does not mean: Retrieving a publisher document does not prove every claim inside it is operationally correct.
A2a.Agent-Card document
Directly observed
InterfaceDelta retrieved the document and recorded it as usable within the protocol observation.
https://sample-agent.invalid/.well-known/agent-card.json · valid
What this does not mean: Retrieving a publisher document does not prove every claim inside it is operationally correct.
Openapi.Document document
Directly observed
InterfaceDelta retrieved the document and recorded it as usable within the protocol observation.
https://sample-agent.invalid/openapi.json · valid
What this does not mean: Retrieving a publisher document does not prove every claim inside it is operationally correct.
Ard.Catalog document
Directly observed
InterfaceDelta retrieved the document and recorded it as usable within the protocol observation.
https://sample-agent.invalid/.well-known/ai-catalog.json · valid
What this does not mean: Retrieving a publisher document does not prove every claim inside it is operationally correct.
Canonical service identity
InterfaceDelta derived
InterfaceDelta deterministically canonicalized the inspected subject as https://sample-agent.invalid.
target-scope-v1 deterministic canonicalization · derived
Canonical Passport fingerprint
InterfaceDelta derived
InterfaceDelta deterministically fingerprinted the canonical Passport projection.
passport-semantic-v4 · derived
What this does not mean: A fingerprint is not a signature, certificate, or trust rating.
MCP endpoint — Valid
Directly observed
A usable protocol document was retrieved and validated.
https://sample-agent.invalid/mcp · valid
A2A endpoint — Declared Not Probed
Not observed / not fetched
The endpoint declaration was retained without actively probing it.
https://sample-agent.invalid/a2a · declared not probed
What this does not mean: Not probed does not establish whether the endpoint is operational.
A2A endpoint declaration
Publisher declared
Publisher metadata declared this endpoint location.
a2a_agent_card · declared
What this does not mean: The declaration alone does not prove the endpoint is reachable or correct.
title: Sample Orders API
Publisher declared
InterfaceDelta retrieved this statement from publisher-supplied protocol metadata.
artifact:ad0bcdeee448ac869c66297a · self reported
What this does not mean: Publisher-declared metadata does not prove domain ownership or operational correctness.
version: 1.4.0
Publisher declared
InterfaceDelta retrieved this statement from publisher-supplied protocol metadata.
artifact:5a54acfc64e8d56d9fdc7c95 · self reported
What this does not mean: Publisher-declared metadata does not prove domain ownership or operational correctness.
name: Sample MCP Server
Publisher declared
InterfaceDelta retrieved this statement from publisher-supplied protocol metadata.
endpoint:30b1590f0d4d77b1d0d7a5d2 · self reported
What this does not mean: Publisher-declared metadata does not prove domain ownership or operational correctness.
name: Sample Research Agent
Publisher declared
InterfaceDelta retrieved this statement from publisher-supplied protocol metadata.
artifact:5a54acfc64e8d56d9fdc7c95 · self reported
What this does not mean: Publisher-declared metadata does not prove domain ownership or operational correctness.
version: 1.4.0
Publisher declared
InterfaceDelta retrieved this statement from publisher-supplied protocol metadata.
endpoint:30b1590f0d4d77b1d0d7a5d2 · self reported
What this does not mean: Publisher-declared metadata does not prove domain ownership or operational correctness.
version: 1.4.0
Publisher declared
InterfaceDelta retrieved this statement from publisher-supplied protocol metadata.
artifact:ad0bcdeee448ac869c66297a · self reported
What this does not mean: Publisher-declared metadata does not prove domain ownership or operational correctness.
Openapi.Operation inventory incomplete
Not observed / not fetched
The inventory stopped at the configured OPENAPI SCHEMA KEYWORD UNSUPPORTED:pattern bound.
artifact:ad0bcdeee448ac869c66297a · incomplete · OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern
What this does not mean: Absence from an incomplete inventory cannot prove removal.
9 cross-interface consistency checks
InterfaceDelta derived
InterfaceDelta compared only explicit protocol identities and mappings represented in the recorded Passport.
passport-semantic-v4 deterministic projection · derived
What this does not mean: A deterministic consistency result is not a security or trust certification.

Canonical JSON

The fingerprint is not a signature, certificate, or trust rating.

{
  "schemaVersion": "0.5.0",
  "subject": {
    "origin": "https://sample-agent.invalid",
    "hostname": "sample-agent.invalid",
    "scheme": "https",
    "effectivePort": 443,
    "inputUrl": "https://sample-agent.invalid"
  },
  "observation": {
    "inspectedAt": "2026-08-26T12:00:00.000Z",
    "discoveryReportType": "agent-passport.discovery-report"
  },
  "protocols": [
    {
      "protocol": "a2a",
      "status": "valid",
      "artifactRefs": [
        "artifact:5a54acfc64e8d56d9fdc7c95"
      ],
      "endpointRefs": [
        "endpoint:a89128a07636203ed97cd2a2"
      ]
    },
    {
      "protocol": "ard",
      "status": "valid",
      "artifactRefs": [
        "artifact:e11d1ee8ec50fe0dbd05000b"
      ],
      "endpointRefs": []
    },
    {
      "protocol": "mcp",
      "status": "valid",
      "revision": "2026-07-28",
      "artifactRefs": [],
      "endpointRefs": [
        "endpoint:30b1590f0d4d77b1d0d7a5d2"
      ]
    },
    {
      "protocol": "mcp-server-card",
      "status": "not_detected",
      "artifactRefs": [],
      "endpointRefs": []
    },
    {
      "protocol": "openapi",
      "status": "valid",
      "revision": "3.1.2",
      "artifactRefs": [
        "artifact:ad0bcdeee448ac869c66297a"
      ],
      "endpointRefs": []
    },
    {
      "protocol": "webmcp",
      "status": "observed",
      "artifactRefs": [
        "artifact:048feb300e3ad0f8e9dbbf76"
      ],
      "endpointRefs": []
    }
  ],
  "artifacts": [
    {
      "id": "artifact:048feb300e3ad0f8e9dbbf76",
      "kind": "webmcp.root-html",
      "protocol": "webmcp",
      "url": "https://sample-agent.invalid/",
      "status": "observed",
      "validationStatus": "not_validated",
      "provenance": [
        "discovery:root-html",
        "webmcp-declarative-v1"
      ]
    },
    {
      "id": "artifact:5a54acfc64e8d56d9fdc7c95",
      "kind": "a2a.agent-card",
      "protocol": "a2a",
      "url": "https://sample-agent.invalid/.well-known/agent-card.json",
      "status": "valid",
      "validationStatus": "not_validated",
      "provenance": [
        "discovery:a2a"
      ]
    },
    {
      "id": "artifact:ad0bcdeee448ac869c66297a",
      "kind": "openapi.document",
      "protocol": "openapi",
      "url": "https://sample-agent.invalid/openapi.json",
      "status": "valid",
      "validationStatus": "not_validated",
      "provenance": [
        "ard_url",
        "discovery:ard",
        "urn:air:sample-agent.invalid:openapi"
      ]
    },
    {
      "id": "artifact:e11d1ee8ec50fe0dbd05000b",
      "kind": "ard.catalog",
      "protocol": "ard",
      "url": "https://sample-agent.invalid/.well-known/ai-catalog.json",
      "status": "valid",
      "validationStatus": "not_validated",
      "provenance": [
        "discovery:ard"
      ]
    }
  ],
  "endpoints": [
    {
      "id": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "protocol": "mcp",
      "role": "mcp.streamable-http",
      "url": "https://sample-agent.invalid/mcp",
      "originRelationship": "same_origin",
      "relationship": "explicitly_inspected",
      "declarationSources": [
        "ard_declared",
        "user_supplied"
      ],
      "observationStatus": "valid",
      "protocolVersion": "2026-07-28",
      "artifactRefs": []
    },
    {
      "id": "endpoint:a89128a07636203ed97cd2a2",
      "protocol": "a2a",
      "role": "a2a.interface",
      "url": "https://sample-agent.invalid/a2a",
      "originRelationship": "same_origin",
      "relationship": "declared",
      "declarationSources": [
        "a2a_agent_card"
      ],
      "observationStatus": "declared_not_probed",
      "protocolVersion": "1.0",
      "artifactRefs": [
        "artifact:5a54acfc64e8d56d9fdc7c95"
      ]
    }
  ],
  "identityAssertions": [
    {
      "id": "identity:33df20350262b022a43b5c78",
      "sourceProtocol": "openapi",
      "sourceRef": "artifact:ad0bcdeee448ac869c66297a",
      "assertionType": "openapi_info",
      "field": "title",
      "value": "Sample Orders API",
      "trust": "self_reported"
    },
    {
      "id": "identity:5745a53461101abb7b3b57d6",
      "sourceProtocol": "a2a",
      "sourceRef": "artifact:5a54acfc64e8d56d9fdc7c95",
      "assertionType": "agent_card_identity",
      "field": "version",
      "value": "1.4.0",
      "trust": "self_reported"
    },
    {
      "id": "identity:5df5578ce91b1b4d0a8c2c18",
      "sourceProtocol": "mcp",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "assertionType": "implementation_identity",
      "field": "name",
      "value": "Sample MCP Server",
      "trust": "self_reported"
    },
    {
      "id": "identity:665c18c596ddf7e1656b8f99",
      "sourceProtocol": "a2a",
      "sourceRef": "artifact:5a54acfc64e8d56d9fdc7c95",
      "assertionType": "agent_card_identity",
      "field": "name",
      "value": "Sample Research Agent",
      "trust": "self_reported"
    },
    {
      "id": "identity:884b188098510442581fb92a",
      "sourceProtocol": "mcp",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "assertionType": "implementation_identity",
      "field": "version",
      "value": "1.4.0",
      "trust": "self_reported"
    },
    {
      "id": "identity:b01d6de648e04014044a19a1",
      "sourceProtocol": "openapi",
      "sourceRef": "artifact:ad0bcdeee448ac869c66297a",
      "assertionType": "openapi_info",
      "field": "version",
      "value": "1.4.0",
      "trust": "self_reported"
    }
  ],
  "accessAssertions": [
    {
      "id": "access:8f340f627ab15df684f62b02",
      "kind": "declared_security_scheme",
      "sourceRef": "artifact:ad0bcdeee448ac869c66297a",
      "name": "oauth2",
      "value": "oauth2"
    },
    {
      "id": "access:dda1a8f1e8bbcf9b9e7ce139",
      "kind": "declared_security_scheme",
      "sourceRef": "artifact:5a54acfc64e8d56d9fdc7c95",
      "name": "oauth2"
    }
  ],
  "inventoryGroups": [
    {
      "id": "inventory:3728f9cd8145bc54aaae1259",
      "kind": "a2a.skill",
      "sourceRef": "artifact:5a54acfc64e8d56d9fdc7c95",
      "attempted": true,
      "complete": true,
      "itemCount": 1
    },
    {
      "id": "inventory:4d2004d0a3197b705d6f8412",
      "kind": "mcp.prompt",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "attempted": true,
      "complete": true,
      "itemCount": 1
    },
    {
      "id": "inventory:61572cf16ac0a38625b75219",
      "kind": "webmcp.tool",
      "sourceRef": "artifact:048feb300e3ad0f8e9dbbf76",
      "attempted": true,
      "complete": true,
      "itemCount": 1
    },
    {
      "id": "inventory:c849bd3a36f1ca456ccbce84",
      "kind": "openapi.operation",
      "sourceRef": "artifact:ad0bcdeee448ac869c66297a",
      "attempted": true,
      "complete": false,
      "itemCount": 1,
      "truncatedReason": "OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern"
    },
    {
      "id": "inventory:f76c959caff9d7a295da17d5",
      "kind": "mcp.resource",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "attempted": true,
      "complete": true,
      "itemCount": 1
    },
    {
      "id": "inventory:ff5191f862e6e04cfbdca2c5",
      "kind": "mcp.tool",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "attempted": true,
      "complete": true,
      "itemCount": 3
    }
  ],
  "capabilities": [
    {
      "id": "capability:1af66c9609e17f5fec39a434",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "protocolKey": "create_order",
      "name": "create_order",
      "title": "create order",
      "description": "Publisher description for create order.",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "metadata": {
        "annotationsPresent": false,
        "description": "Publisher description for create order.",
        "explicitCapabilityId": "urn:interfacedelta:sample:create-order",
        "inputSchemaCompatibility": {
          "dialect": "https://json-schema.org/draft/2020-12/schema",
          "limitations": [
            {
              "detail": "pattern",
              "path": "$/properties/query/pattern",
              "reasonCode": "UNSUPPORTED_SCHEMA_KEYWORD"
            }
          ],
          "projectionVersion": "json-schema-compatibility-projection-v1",
          "schema": {
            "additionalProperties": false,
            "properties": {
              "limit": {
                "lower": {
                  "exclusive": false,
                  "value": 1
                },
                "types": [
                  "integer"
                ],
                "upper": {
                  "exclusive": false,
                  "value": 25
                },
                "values": [
                  1,
                  10,
                  25,
                  5
                ]
              },
              "note": {
                "maxLength": 120,
                "types": [
                  "null",
                  "string"
                ]
              },
              "query": {
                "maxLength": 240,
                "minLength": 1,
                "types": [
                  "string"
                ]
              }
            },
            "required": [
              "query"
            ],
            "types": [
              "object"
            ]
          }
        },
        "inputSchemaPresent": true,
        "inputSchemaSha256": "schema-current",
        "name": "create_order",
        "outputSchemaCompatibility": {
          "dialect": "https://json-schema.org/draft/2020-12/schema",
          "limitations": [],
          "projectionVersion": "json-schema-compatibility-projection-v1",
          "schema": {
            "additionalProperties": false,
            "properties": {
              "items": {
                "items": {
                  "types": [
                    "string"
                  ]
                },
                "maxItems": 25,
                "minItems": 0,
                "types": [
                  "array"
                ]
              },
              "result": {
                "types": [
                  "string"
                ]
              }
            },
            "required": [
              "result"
            ],
            "types": [
              "object"
            ]
          }
        },
        "outputSchemaPresent": true,
        "outputSchemaSha256": "output-schema-create_order",
        "title": "create order"
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "15a803890484ca2a682dbaf0a3c12a45fea061aec7948aba47ec14439c3b77fa"
      },
      "provenance": [
        "endpoint:30b1590f0d4d77b1d0d7a5d2",
        "mcp-inventory:https://sample-agent.invalid/mcp:tools"
      ]
    },
    {
      "id": "capability:3e461817b1c6a7b486009a05",
      "kind": "openapi.operation",
      "protocol": "openapi",
      "protocolKey": "POST /orders",
      "name": "create_order",
      "title": "Create order over HTTP",
      "sourceRef": "artifact:ad0bcdeee448ac869c66297a",
      "metadata": {
        "explicitCapability": {
          "id": "urn:interfacedelta:sample:create-order",
          "requestMediaType": "application/json",
          "responseMediaType": "application/json",
          "responseStatus": "200"
        },
        "limitationCodes": [
          "OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern"
        ],
        "method": "POST",
        "operationId": "create_order",
        "parameters": [
          {
            "complete": true,
            "in": "header",
            "key": "header:x-request-id",
            "limitationCodes": [],
            "name": "x-request-id",
            "required": false,
            "schemaCompatibility": {
              "dialect": "https://json-schema.org/draft/2020-12/schema",
              "limitations": [],
              "projectionVersion": "json-schema-compatibility-projection-v1",
              "schema": {
                "maxLength": 64,
                "minLength": 8,
                "types": [
                  "string"
                ]
              }
            },
            "schemaSha256": "request-id-schema"
          }
        ],
        "path": "/orders",
        "paymentDeclaration": {
          "declares402Response": true,
          "offers": [
            {
              "currency": "usd",
              "intent": "charge",
              "method": "tempo",
              "pricing": "dynamic"
            }
          ],
          "offersTruncated": false,
          "rejectionCodes": []
        },
        "requestBody": {
          "content": [
            {
              "complete": false,
              "limitationCodes": [
                "OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern"
              ],
              "mediaType": "application/json",
              "schemaCompatibility": {
                "dialect": "https://json-schema.org/draft/2020-12/schema",
                "limitations": [
                  {
                    "detail": "pattern",
                    "path": "$/properties/query/pattern",
                    "reasonCode": "UNSUPPORTED_SCHEMA_KEYWORD"
                  }
                ],
                "projectionVersion": "json-schema-compatibility-projection-v1",
                "schema": {
                  "additionalProperties": false,
                  "properties": {
                    "limit": {
                      "lower": {
                        "exclusive": false,
                        "value": 1
                      },
                      "types": [
                        "integer"
                      ],
                      "upper": {
                        "exclusive": false,
                        "value": 25
                      },
                      "values": [
                        1,
                        10,
                        25,
                        5
                      ]
                    },
                    "note": {
                      "maxLength": 120,
                      "types": [
                        "null",
                        "string"
                      ]
                    },
                    "query": {
                      "maxLength": 240,
                      "minLength": 1,
                      "types": [
                        "string"
                      ]
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "types": [
                    "object"
                  ]
                }
              },
              "schemaSha256": "schema-current"
            }
          ],
          "required": true
        },
        "responses": [
          {
            "content": [],
            "descriptionPresent": true,
            "statusKey": "402"
          },
          {
            "content": [
              {
                "complete": true,
                "limitationCodes": [],
                "mediaType": "application/json",
                "schemaCompatibility": {
                  "dialect": "https://json-schema.org/draft/2020-12/schema",
                  "limitations": [],
                  "projectionVersion": "json-schema-compatibility-projection-v1",
                  "schema": {
                    "additionalProperties": false,
                    "properties": {
                      "items": {
                        "items": {
                          "types": [
                            "string"
                          ]
                        },
                        "maxItems": 25,
                        "minItems": 0,
                        "types": [
                          "array"
                        ]
                      },
                      "result": {
                        "types": [
                          "string"
                        ]
                      }
                    },
                    "required": [
                      "result"
                    ],
                    "types": [
                      "object"
                    ]
                  }
                },
                "schemaSha256": "output-schema-create_order"
              }
            ],
            "descriptionPresent": true,
            "statusKey": "200"
          }
        ],
        "securityDeclared": true,
        "tags": [
          "orders"
        ]
      },
      "inventory": {
        "complete": false,
        "truncatedReason": "OPENAPI_SCHEMA_KEYWORD_UNSUPPORTED:pattern"
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "7671e36e3ba9b352e67eaf4b57b74fd9b97c1d80803f3e3b8a2e8d2fc29779ab"
      },
      "provenance": [
        "discovery:ard",
        "artifact:ad0bcdeee448ac869c66297a",
        "ard_url"
      ]
    },
    {
      "id": "capability:67b498e079fcb63a0abae94f",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "protocolKey": "get_order",
      "name": "get_order",
      "title": "get order",
      "description": "Publisher description for get order.",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "metadata": {
        "annotationsPresent": false,
        "description": "Publisher description for get order.",
        "inputSchemaCompatibility": {
          "dialect": "https://json-schema.org/draft/2020-12/schema",
          "limitations": [],
          "projectionVersion": "json-schema-compatibility-projection-v1",
          "schema": {
            "additionalProperties": false,
            "properties": {
              "limit": {
                "lower": {
                  "exclusive": false,
                  "value": 1
                },
                "types": [
                  "integer"
                ],
                "upper": {
                  "exclusive": false,
                  "value": 25
                },
                "values": [
                  1,
                  10,
                  25,
                  5
                ]
              },
              "note": {
                "maxLength": 120,
                "types": [
                  "null",
                  "string"
                ]
              },
              "query": {
                "maxLength": 240,
                "minLength": 1,
                "types": [
                  "string"
                ]
              }
            },
            "required": [
              "limit",
              "query"
            ],
            "types": [
              "object"
            ]
          }
        },
        "inputSchemaPresent": true,
        "inputSchemaSha256": "schema-get_order-current",
        "name": "get_order",
        "outputSchemaCompatibility": {
          "dialect": "https://json-schema.org/draft/2020-12/schema",
          "limitations": [],
          "projectionVersion": "json-schema-compatibility-projection-v1",
          "schema": {
            "additionalProperties": false,
            "properties": {
              "items": {
                "items": {
                  "types": [
                    "string"
                  ]
                },
                "maxItems": 25,
                "minItems": 0,
                "types": [
                  "array"
                ]
              },
              "result": {
                "types": [
                  "string"
                ]
              }
            },
            "required": [
              "result"
            ],
            "types": [
              "object"
            ]
          }
        },
        "outputSchemaPresent": true,
        "outputSchemaSha256": "output-schema-get_order",
        "title": "get order"
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "b1f655e3415599cce9a6c9c21eedc50ddaf61a10a9884c1364f55e3acc9cda5e"
      },
      "provenance": [
        "endpoint:30b1590f0d4d77b1d0d7a5d2",
        "mcp-inventory:https://sample-agent.invalid/mcp:tools"
      ]
    },
    {
      "id": "capability:742c590bccb06810c790338f",
      "kind": "mcp.resource",
      "protocol": "mcp",
      "protocolKey": "sample://catalog",
      "name": "Public catalog",
      "description": "Publisher-provided catalog listing metadata.",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "metadata": {
        "description": "Publisher-provided catalog listing metadata.",
        "mimeType": "application/json",
        "name": "Public catalog",
        "uri": "sample://catalog"
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "85a886839e113a8844ee80100727f9200a355c75da8353815f19486867ecf5fa"
      },
      "provenance": [
        "endpoint:30b1590f0d4d77b1d0d7a5d2",
        "mcp-inventory:https://sample-agent.invalid/mcp:resources"
      ]
    },
    {
      "id": "capability:a09dd5cea939f3eb7bd819ec",
      "kind": "a2a.skill",
      "protocol": "a2a",
      "protocolKey": "research_brief",
      "name": "Research brief",
      "title": "Research brief",
      "description": "Prepare a structured research brief.",
      "sourceRef": "artifact:5a54acfc64e8d56d9fdc7c95",
      "metadata": {
        "tags": [
          "sample"
        ],
        "examples": [
          "Prepare a brief about deterministic interfaces."
        ],
        "inputModes": [
          "text/plain"
        ],
        "outputModes": [
          "application/json"
        ]
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "4de713b85d4690ff4c5b8c00d0ed5ab817da4944e67817f4aeeb0b51f9d3a332"
      },
      "provenance": [
        "discovery:a2a",
        "artifact:5a54acfc64e8d56d9fdc7c95"
      ]
    },
    {
      "id": "capability:a55ac47a48c9a53129a27418",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "protocolKey": "search_catalog",
      "name": "search_catalog",
      "title": "search catalog",
      "description": "Publisher description for search catalog.",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "metadata": {
        "annotationsPresent": false,
        "description": "Publisher description for search catalog.",
        "inputSchemaCompatibility": {
          "dialect": "https://json-schema.org/draft/2020-12/schema",
          "limitations": [],
          "projectionVersion": "json-schema-compatibility-projection-v1",
          "schema": {
            "additionalProperties": false,
            "properties": {
              "limit": {
                "lower": {
                  "exclusive": false,
                  "value": 1
                },
                "types": [
                  "integer"
                ],
                "upper": {
                  "exclusive": false,
                  "value": 25
                },
                "values": [
                  1,
                  10,
                  25,
                  5
                ]
              },
              "note": {
                "maxLength": 120,
                "types": [
                  "null",
                  "string"
                ]
              },
              "query": {
                "maxLength": 240,
                "minLength": 1,
                "types": [
                  "string"
                ]
              }
            },
            "required": [
              "query"
            ],
            "types": [
              "object"
            ]
          }
        },
        "inputSchemaPresent": true,
        "inputSchemaSha256": "schema-search_catalog",
        "name": "search_catalog",
        "outputSchemaCompatibility": {
          "dialect": "https://json-schema.org/draft/2020-12/schema",
          "limitations": [],
          "projectionVersion": "json-schema-compatibility-projection-v1",
          "schema": {
            "additionalProperties": false,
            "properties": {
              "items": {
                "items": {
                  "types": [
                    "string"
                  ]
                },
                "maxItems": 25,
                "minItems": 0,
                "types": [
                  "array"
                ]
              },
              "result": {
                "types": [
                  "string"
                ]
              }
            },
            "required": [
              "result"
            ],
            "types": [
              "object"
            ]
          }
        },
        "outputSchemaPresent": true,
        "outputSchemaSha256": "output-schema-search_catalog",
        "title": "search catalog",
        "uiResourceUri": "ui://sample-agent/catalog-view",
        "uiResourceUriField": "ui.resourceUri",
        "uiVisibility": [
          "model",
          "app"
        ]
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "5d89b57d1f8e509debf382c36303db2e7eff9f4bab4c943a031429b8de5fa741"
      },
      "provenance": [
        "endpoint:30b1590f0d4d77b1d0d7a5d2",
        "mcp-inventory:https://sample-agent.invalid/mcp:tools"
      ]
    },
    {
      "id": "capability:bbfde7bf98ae238cbfc65229",
      "kind": "webmcp.tool",
      "protocol": "webmcp",
      "protocolKey": "request_quote",
      "name": "request_quote",
      "description": "Request a synthetic quote for a catalog item.",
      "sourceRef": "artifact:048feb300e3ad0f8e9dbbf76",
      "metadata": {
        "action": "/quotes",
        "actionRelationship": "same_origin",
        "autoSubmit": false,
        "controlCount": 2,
        "controls": [
          {
            "description": "Catalog item identifier",
            "element": "input",
            "name": "item",
            "occurrences": 1,
            "required": true,
            "type": "text"
          },
          {
            "description": "Plan tier",
            "element": "select",
            "name": "plan",
            "occurrences": 1,
            "optionCount": 2,
            "required": false
          }
        ],
        "controlsTruncated": false,
        "method": "post"
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "0f3d31b49b4f587082553ab1f90126a011beec42667d9d2dc3965ce1c33150c6"
      },
      "provenance": [
        "discovery:root-html",
        "artifact:048feb300e3ad0f8e9dbbf76"
      ]
    },
    {
      "id": "capability:eb645a09f11bcaae55264e24",
      "kind": "mcp.prompt",
      "protocol": "mcp",
      "protocolKey": "brief_template",
      "name": "brief_template",
      "title": "Brief template",
      "description": "Publisher-provided prompt template metadata.",
      "sourceRef": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "sourceEndpointId": "endpoint:30b1590f0d4d77b1d0d7a5d2",
      "metadata": {
        "argumentCount": 1,
        "description": "Publisher-provided prompt template metadata.",
        "name": "brief_template",
        "title": "Brief template"
      },
      "inventory": {
        "complete": true
      },
      "fingerprint": {
        "algorithm": "sha256",
        "canonicalization": "RFC8785",
        "projectionVersion": "capability-semantic-v4",
        "value": "03f6c178fbc7740ac0ce6d8ca93bd29bde0c0b6c915ca137a23866f9ac0c39e0"
      },
      "provenance": [
        "endpoint:30b1590f0d4d77b1d0d7a5d2",
        "mcp-inventory:https://sample-agent.invalid/mcp:prompts"
      ]
    }
  ],
  "consistency": {
    "summary": {
      "checks": 9,
      "matches": 8,
      "mismatches": 0,
      "indeterminate": 1,
      "notApplicable": 0
    },
    "findings": [
      {
        "code": "ARD_DECLARED_A2A_ARTIFACT",
        "status": "match",
        "subjectRefs": [
          "artifact:5a54acfc64e8d56d9fdc7c95"
        ],
        "evidenceRefs": [
          "discovery:a2a",
          "discovery:ard"
        ],
        "message": "ARD declaration and A2A observation refer to https://sample-agent.invalid/.well-known/agent-card.json."
      },
      {
        "code": "ARD_OPENAPI_ARTIFACT_OBSERVED",
        "status": "match",
        "subjectRefs": [
          "artifact:ad0bcdeee448ac869c66297a"
        ],
        "evidenceRefs": [
          "discovery:ard",
          "urn:air:sample-agent.invalid:openapi"
        ],
        "message": "The ARD-declared artifact was observed and validated as OpenAPI 3.1.2."
      },
      {
        "code": "MCP_PROMPTS_ADVERTISEMENT_LIST",
        "status": "match",
        "subjectRefs": [
          "endpoint:30b1590f0d4d77b1d0d7a5d2"
        ],
        "evidenceRefs": [
          "mcp-inventory:https://sample-agent.invalid/mcp:prompts"
        ],
        "message": "MCP advertised prompts and the passive list completed."
      },
      {
        "code": "MCP_RESOURCES_ADVERTISEMENT_LIST",
        "status": "match",
        "subjectRefs": [
          "endpoint:30b1590f0d4d77b1d0d7a5d2"
        ],
        "evidenceRefs": [
          "mcp-inventory:https://sample-agent.invalid/mcp:resources"
        ],
        "message": "MCP advertised resources and the passive list completed."
      },
      {
        "code": "MCP_TOOLS_ADVERTISEMENT_LIST",
        "status": "match",
        "subjectRefs": [
          "endpoint:30b1590f0d4d77b1d0d7a5d2"
        ],
        "evidenceRefs": [
          "mcp-inventory:https://sample-agent.invalid/mcp:tools"
        ],
        "message": "MCP advertised tools and the passive list completed."
      },
      {
        "code": "OPENAPI_MCP_EXPLICIT_MAPPING",
        "status": "match",
        "subjectRefs": [
          "POST /orders",
          "create_order"
        ],
        "evidenceRefs": [
          "urn:interfacedelta:sample:create-order"
        ],
        "message": "OpenAPI and MCP carry the same valid explicit publisher-provided capability identifier."
      },
      {
        "code": "OPENAPI_MCP_INPUT_SCHEMA_ALIGNMENT",
        "status": "indeterminate",
        "subjectRefs": [
          "POST /orders",
          "create_order"
        ],
        "evidenceRefs": [
          "application/json",
          "urn:interfacedelta:sample:create-order"
        ],
        "message": "Input equivalence could not be proven within the supported fragment."
      },
      {
        "code": "OPENAPI_MCP_OUTPUT_SCHEMA_ALIGNMENT",
        "status": "match",
        "subjectRefs": [
          "POST /orders",
          "create_order"
        ],
        "evidenceRefs": [
          "200",
          "application/json",
          "urn:interfacedelta:sample:create-order"
        ],
        "message": "The explicitly mapped declared output schemas are equivalent within the supported deterministic fragment."
      },
      {
        "code": "OPENAPI_SERVER_SUBJECT_ALIGNMENT",
        "status": "match",
        "subjectRefs": [
          "artifact:ad0bcdeee448ac869c66297a"
        ],
        "evidenceRefs": [
          "https://sample-agent.invalid"
        ],
        "message": "A concrete OpenAPI server declaration resolves to the inspected subject origin."
      }
    ]
  },
  "fingerprints": {
    "passport": {
      "algorithm": "sha256",
      "canonicalization": "RFC8785",
      "projectionVersion": "passport-semantic-v4",
      "value": "e5c791a920aa6a7fb2556997d700816f58589b78345c1fde667c79b339df4542",
      "complete": false
    }
  }
}

What an agent can do here

What changed

Look first

Surfaces

Capabilities

Identity and publisher description

Publisher description

Inputs

Tool arguments

Properties

Outputs

Tool result

Properties

Access context

Provenance

Exact cross-interface evidence

Compatibility history

Evidence and limitations

Identity and publisher description

Publisher description

Inputs

Tool arguments

Properties

Outputs

Tool result

Properties

Access context

Provenance

Compatibility history

Evidence and limitations

Identity and publisher description

Publisher description

Inputs

Tool arguments

Properties

Outputs

Tool result

Properties

Access context

Provenance

Compatibility history

Evidence and limitations

Identity and publisher description

Inputs

Parameter x-request-id

Request body

Properties

Outputs

Response 200

Properties

Access context

Provenance

Exact cross-interface evidence

Compatibility history

Evidence and limitations

Identity and publisher description

Publisher description

Inputs

Outputs

Access context

Provenance

Compatibility history

Evidence and limitations

Identity and publisher description

Publisher description

Outputs

Access context

Provenance

Compatibility history

Evidence and limitations

Identity and publisher description

Publisher description

Inputs

Access context

Provenance

Compatibility history

Evidence and limitations

Changes recorded

Declared agent interfaces

WebMCP form tools · Experimental