Atlas entry
crawlcheck. io
29 capabilities over ARD, MCP, OpenAPI and WebMCP. The inventory is incomplete. First atlas observation.
29 capabilities, 28 of them tools. 10 only read. 18 have no reading.◇
AI reading, beta. side-effects v1 on claude-haiku-5.5, calibrated on MCP (golden-3). Only readings above a measured precision count. Counts are tools, not calls: no tool was called.
AI readings summary · beta
The service lists 28 tools, and 10 have AI readings.
10 tools are read as read-only, including corpus_state, video_site and list_verified_capabilities.
Written by code from the AI readings on this page: it groups them and says nothing they do not.
What an agent can do here
AI readings, beta · Readings on 10 of 28 MCP tools.
Moves money
0
No tool read this way.
Deletes or cancels records
0
No tool read this way.
Sends messages to people
0
No tool read this way.
Changes permissions
0
No tool read this way.
Runs code
0
No tool read this way.
Should ask a person first
0
No tool read this way.
No counted reading 18 tools No reading was counted, so any effect above is possible for them: best_source, check_site_safety, crawler_path, draft_llms, fix_entitymap, fix_machine_chain, fix_mostly_code, fix_robots, fix_stale_cache, mcp_precheck and 8 more.
What changed
First atlas observation. Atlas history
Look first
AI reading, beta: AI adds items here; it never removes one.
No tool is read as one of the six effects. A zero is a count, not a clearance.
Surfaces
5 protocols checked
| ARD | Valid | v0.91 · 1 retrieved artifact |
|---|---|---|
| A2A | invalid | 0 skills |
| MCP | Valid | 2025-11-25 · 28 tools · resources not advertised · prompts not advertised |
| OpenAPI | Observed | 0 operations |
| WebMCP | Observed | 1 declarative form tool · experimental |
Exact states and meaning
- ARDobserved
Exact state: valid · Revision v0.91 · 1 retrieved artifact
A usable protocol document was retrieved and validated.
Directly observed
- A2Afailed
Exact state: invalid · Revision 1.0 · 0 skills
InterfaceDelta retained the machine state “invalid” without assigning an additional meaning.
Not observed / not fetched
- MCPobserved
Exact state: valid · Revision 2025-11-25 · 28 tools · resources not advertised · prompts not advertised
A usable protocol document was retrieved and validated.
Directly observed
- OpenAPIobserved
Exact state: observed · 0 operations
The protocol surface responded within the passive inspection boundary.
Directly observed
- WebMCPobserved
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
Capabilities
Showing 28 of 28.
| Tool and inputs | ◇ AI reading, beta · confidence | ||||||
|---|---|---|---|---|---|---|---|
| Read as none of the six 10 Not a clearance. | |||||||
| no inputs | Reads only0.86 | ||||||
| |||||||
| code, domain, id, path | Reads only0.85 | ||||||
| |||||||
| domain*, field*, value* | Reads only0.82 | ||||||
| |||||||
| domain*, verified_only | Reads only0.87 | ||||||
| |||||||
| domain, id | Reads only0.90 | ||||||
| |||||||
| domain, shelf | Reads only0.88 | ||||||
| |||||||
| domain*, path | Reads only0.81 | ||||||
| |||||||
| no inputs | Reads only0.88 | ||||||
| |||||||
| handle, id | Reads only0.85 | ||||||
| |||||||
| domain*, handle | Reads only0.80 | ||||||
| |||||||
| No counted reading 18 No reading was counted, so any effect is possible. | |||||||
| city, domains, trade | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| agent, domain*, fresh | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain, id | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain, id | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain, id | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| endpoint, server_name, tools, version | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| action, agent, domain*, policy and 1 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| no inputs | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| agent, domain*, path | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| domain* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| lines* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| fresh, v* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
Read as this effect No reading: unknown Not read as this effect◇ AI readings, beta. A zero is a count, not a clearance.
A2A skills 0+ observed
Inventory incomplete. The displayed count is a lower bound; missing items do not prove removal.
None recorded in this Passport.
OpenAPI operations 0+ observed
Inventory incomplete. The displayed count is a lower bound; missing items do not prove removal.
None recorded in this Passport.
Not observed in this Passport: MCP resources, MCP prompts.
The atlas shows each capability by its plain identifier, inputs and declared sign-in. Publisher descriptions, paths, links and source evidence are not published here.
The comparison with the previous observation is shown only to the account that recorded it.
Atlas history
1 observation
- 29 capabilities · ARD, MCP 2025-11-25, MCP Server Card, OpenAPI and WebMCP · MCP endpoint valid · 1 incomplete inventory groupFirst observation
Fingerprint and versions
- Fingerprint
f626cd25af9dd946089bf8abfb8bf61405c64d2294162ef0e8cd0b8c4044f376(incomplete)- Passport schema
- 0.5.0, passport-semantic-v4
- Consistency
- ARD_DECLARED_A2A_ARTIFACT: mismatch · ARD_DECLARED_MCP_SERVER_CARD: mismatch · ARD_OPENAPI_ARTIFACT_OBSERVED: indeterminate · MCP_PROMPTS_ADVERTISEMENT_LIST: not applicable · MCP_RESOURCES_ADVERTISEMENT_LIST: not applicable · MCP_TOOLS_ADVERTISEMENT_LIST: match · OPENAPI_MCP_EXPLICIT_MAPPING: not applicable · OPENAPI_SERVER_SUBJECT_ALIGNMENT: indeterminate
Each class compares an observation with the previous atlas observation. Runs of unchanged observations are grouped. Struck values are what the previous observation recorded; inserted values are what this one recorded.
Declared and observed
28 tools declare hints; the AI readings agree with all 10 that have a reading.
A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.
About this entry
io.github.emmanuelorta/crawlcheckListedOfficial MCP Registry · first listed 6 Nov 2026 · last listed 6 Nov 2026
Passive observations of a public interface listed in the Official MCP Registry. An observation does not verify security, ownership or compliance, and InterfaceDelta assigns no scores or rankings. Methodology · Report an inaccuracy · Ask for removal
Identity and snapshot
- Target key
sha256:70fa79839d55c5e246bde509fcb1a6b80936f77530781ea64d675568cf86c73f- Locator SHA-256
24eecb0b9f4abd2cad979f8537b77ea7ff9965896fc37f948bc5e77bebe6c7a2- Snapshot generated
- 13 Nov 2026, 00:06 UTC
The entry is one exact observed target, not a real-world service identity, and implies no ownership. Endpoint paths are not published; the locator hash lets an operator confirm their own URL.

