Atlas entry

`yarnhen.com`

24 capabilities over MCP. The inventory is incomplete. First atlas observation.

Observed 3 Nov 2026, 11:22 UTC · passive: no tools called, no credentials sent · sha256:e32be7…6c5b

Capability facts

As observed from outside, at the time below

Observed: 3 Nov 2026, 11:22 UTC
Signed: 3 Nov 2026, 18:32 UTC

Protocols: MCP
Tools: 20
Declared sign-in: None declared

Effects counted AI readings, beta

Moves money: 0
Deletes or cancels records: 3
Sends messages to people: 0
Changes permissions: 0
Runs code: 0
Asks a person: 0

20 tools examined; 14 counted above a measured threshold.

Declared vs read disagreements

Declared read-only, read as writing: 0
Declared destructive, read as not writing: 0
Declared non-destructive, read as deleting: 1
Declared closed-world, read as reaching out: 0

Change since previous: First observation
Label status: Current

Surfaces

5 protocols checked

ARD	Not found	No document retrieved
A2A	invalid	0 skills
MCP	Valid	2025-11-25 · 20 tools · 2 resources · 2 prompts
OpenAPI	Not detected	0 operations
WebMCP	Not detected	0 declarative form tools · experimental

Exact states and meaning

ARD
absent
Exact state: not found · No document retrieved
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
A2A
failed
Exact state: invalid · 0 skills
InterfaceDelta retained the machine state “invalid” without assigning an additional meaning.
Not observed / not fetched
MCP
observed
Exact state: valid · Revision 2025-11-25 · 20 tools · 2 resources · 2 prompts
A usable protocol document was retrieved and validated.
Directly observed
OpenAPI
absent
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
WebMCP
absent
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

24 · inventory incomplete

Summary of the AI readings · beta

The service lists 20 capabilities, and 14 have AI readings.

delete_post, cancel_post and delete_webhook are read as deleting or cancelling records.

disable_auto_recharge is read as changing records.

create_account and create_webhook are read as creating records.

Rows named: delete_post · cancel_post · delete_webhook · disable_auto_recharge · create_account · create_webhook

Written by code from the AI readings on this page: it groups them and says nothing they do not.

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.

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 tools 20

browse_posts
inputs city, country, state, topic
AI Reads only 0.90
cancel_post
inputs id (required)
AI Deletes or cancels records 0.80
check_story
inputs body (required), location, title (required), topics (required)
AI Reads only 0.80
create_account
inputs accept_terms (required), email (required), handle, name (required)
AI Creates records 0.90
create_webhook
inputs events, url (required)
AI Creates records 0.84
delete_post
inputs id (required)
AI Deletes or cancels records 0.90
delete_webhook
inputs id (required)
AI Deletes or cancels records 0.90
disable_auto_recharge
AI Changes records 0.85
get_account
AI Reads only 0.83
get_policy
AI Reads only 0.90
get_post
inputs id (required)
AI Reads only 0.89
get_pricing
get_status
AI Reads only 0.88
list_webhooks
AI Reads only 0.90
post_story
inputs body (required), location, title (required), topics (required)
present_attestation
inputs attestation
report_post
inputs details, email, post_id (required), reason (required)
request_account_deletion
search_posts
inputs city, country, q (required), state and 1 more
AI Reads only 0.80
test_webhook
inputs id (required)

MCP resources 2

name not shown
name not shown

MCP prompts 2

publish_a_post
set_up_account

Not observed in this Passport: OpenAPI operations.

Declared and observed

cancel_post
Declared
The publisher declares it non-destructive.
Read
AI · beta The AI reading: deletes or cancels records (0.8).

A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.

Atlas history

1 observation

3 Nov 2026, 11:22 UTC24 capabilities · MCP 2025-11-25 · MCP endpoint validFirst observation
Fingerprint and versions
Fingerprint
e32be7e1dd7cc3c8591964f6495a1198c5e0fa246064c93ff924c08c56706c5b
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.

About this entry

com.yarnhen/stories
Listed
Official MCP Registry · first listed 3 Nov 2026 · last listed 3 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: sha256:5c383fdad79a16acd8574a0a19834e89da4b87bfb13f66e8513a3523df96b444
Locator SHA-256: 4c49c483888dbccb2f177ef191cfac7332baaa380d41003482ca640a53977f14
Snapshot generated: 4 Nov 2026, 00:59 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.