Atlas entry
susurration.
22 capabilities over MCP. The inventory is incomplete. First atlas observation.
22 capabilities, 15 of them tools. 7 only read. 5 change records. 3 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 15 tools, and 12 have AI readings.
flock_set_params is read as changing records.
4 tools are read as creating records, including flock_create_from_trace, proposal_submit and flock_create.
7 tools are read as read-only, including flock_timeline, experiment_get and trace_browse.
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 12 of 15 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 3 tools No reading was counted, so any effect above is possible for them: experiment_run, flock_step, playground_manifest.
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 | unreachable | No document retrieved |
|---|---|---|
| A2A | unreachable | 0 skills |
| MCP | Valid | 2025-11-25 · 15 tools · 7 resources · 0 prompts |
| OpenAPI | Not detected | 0 operations |
| WebMCP | Not detected | 0 declarative form tools · experimental |
Exact states and meaning
- ARDfailed
Exact state: unreachable · No document retrieved
The supported discovery location did not provide a usable response within the observation boundary.
An unreachable result does not prove the service is unavailable to every client or that it advertises no capabilities.
Not observed / not fetched
- A2Afailed
Exact state: unreachable · 0 skills
The supported discovery location did not provide a usable response within the observation boundary.
An unreachable result does not prove the service is unavailable to every client or that it advertises no capabilities.
Not observed / not fetched
- MCPobserved
Exact state: valid · Revision 2025-11-25 · 15 tools · 7 resources · 0 prompts
A usable protocol document was retrieved and validated.
Directly observed
- OpenAPIabsent
Exact state: not detected · 0 operations
No endpoint was established from the evidence and scope that InterfaceDelta inspected.
Not detected does not prove that no endpoint exists.
Not observed / not fetched
- WebMCPabsent
Exact state: not detected · 0 declarative form tools · experimental
No named declarative WebMCP form tools were observed in the origin root HTML.
Script-registered tools and other pages are not observed, so this does not mean the site has no WebMCP tools.
Not observed / not fetched
Capabilities
Showing 22 of 22.
| Tool and inputs | ◇ AI reading, beta · confidence | ||||||
|---|---|---|---|---|---|---|---|
| Read as none of the six 12 Not a clearance. | |||||||
| experiment_id* | Reads only0.88 | ||||||
| |||||||
| alignment, cohesion, n, noise and 2 more | Creates records0.90 | ||||||
| |||||||
| trace_id* | Creates records0.80 | ||||||
| |||||||
| flock_id* | Reads only0.90 | ||||||
| |||||||
| alignment, cohesion, flock_id*, noise and 1 more | Changes records0.86 | ||||||
| |||||||
| flock_id*, from, stride, to | Reads only0.86 | ||||||
| |||||||
| limit, status | Reads only0.90 | ||||||
| |||||||
| arrived_via, author, description*, title* | Creates records0.90 | ||||||
| |||||||
| limit, order | Reads only0.86 | ||||||
| |||||||
| trace_id* | Reads only0.88 | ||||||
| |||||||
| arrived_via, at_tick*, author, context and 8 more | Creates records0.80 | ||||||
| |||||||
| since* | Reads only0.89 | ||||||
| |||||||
| No counted reading 3 No reading was counted, so any effect is possible. | |||||||
| alignment, cohesion, interventions, n and 7 more | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| flock_id*, include_positions, steps* | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| no inputs | unknown | unknown | unknown | unknown | unknown | unknown | No reading |
| |||||||
| MCP resources 7 Not read by AI. | |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
| no inputs | Not read | ||||||
| |||||||
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.
MCP prompts 0+ observed
Inventory incomplete. MCP prompts could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.
None recorded in this Passport.
OpenAPI operations 0+ observed
Inventory incomplete. OpenAPI operations could not be fully inventoried: ARD discovery did not resolve, so declarations made there were not read.
None recorded in this Passport.
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
- 22 capabilities · MCP 2025-11-25 · MCP endpoint validFirst observation
Fingerprint and versions
- Fingerprint
6964078766ac2584cf6d97d4c7ea533f7972b68f0de83cb2450edbbb656570a0- Passport schema
- 0.5.0, passport-semantic-v4
- Consistency
- MCP_PROMPTS_ADVERTISEMENT_LIST: match · MCP_RESOURCES_ADVERTISEMENT_LIST: match · MCP_TOOLS_ADVERTISEMENT_LIST: match · OPENAPI_MCP_EXPLICIT_MAPPING: not applicable
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
No tools declare hints.
A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.
About this entry
ai.susurration/playgroundListedOfficial MCP Registry · first listed 14 Sep 2026 · last listed 26 Oct 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
sha256:5a7e8d426af2c9abff379617fa27b67061e428ae2191ed2a5b153ed6dcf50b10- Locator SHA-256
e884d388ab9ed083410cd032bcad4f784caa5dbc8c150f53c50801fa839a76e6- Snapshot generated
- 11 Nov 2026, 22:36 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.