Capability registry

What trakkr.ai declares an agent can do

Measured 2026-10-11 22:02 UTC from the declarations the site publishes (record fl6sunoptl). Each capability is shown as declared, under the policy class that decides whether anything may call it, beside what a call observed.

4declared

0public read-only

0called and verified

0declared ≠ observed

mcpprotocols

Unknown 4

Declared versus observed

Capability	Policy class	Declared	Observed
fetch mcp · https://api.trakkr.ai/public/mcp	Unknown never called automatically	its effect is not stated in the declaration auth: none	not attempted on another origin (api.trakkr.ai): only the scanned origin is called
get_authenticated_mcp_setup mcp · https://api.trakkr.ai/public/mcp	Unknown never called automatically	its effect is not stated in the declaration auth: none	not attempted on another origin (api.trakkr.ai): only the scanned origin is called
get_public_dataset mcp · https://api.trakkr.ai/public/mcp	Unknown never called automatically	its effect is not stated in the declaration auth: none	not attempted on another origin (api.trakkr.ai): only the scanned origin is called
search mcp · https://api.trakkr.ai/public/mcp	Unknown never called automatically	its effect is not stated in the declaration auth: none	not attempted on another origin (api.trakkr.ai): only the scanned origin is called

Where the declaration and the call disagree

None: every capability that was called answered as declared.

Signed certificate

This page’s rows, signed by the observer’s Ed25519 key: every capability’s id, endpoint, safety class, policy class and observed state, the declaration hashes and the record’s sealed manifest. The certificate is derived from the record alone, so the same record always yields the same id.

certificate_id ccap1:591b3ad8d9d13b59eeef44c2dfc2cc3a0808de08e0be4d54d89b494a3e4fb5a1
alg Ed25519 · kid 1hHmE3fo1rg5Ig70wuFtJ5wBc7G-sUTgUJkxyPWFRps
sig NoiYlN_uPxT3lU38Nb0REyPkRo5LHxYTB49IDgOj5m4j8B7qMP64pxEr3bfd8Nd2yMctLCsVLYI7Hw2kq4YrBw

The certificate as JSON · verify it now · the key directory · machine-readability certificate

To verify it yourself: SHA-256 the certificate object as canonical JSON (keys sorted, no whitespace); the hex digest must equal certificate_sha256 and the id; then check the Ed25519 signature over "crawlcheck-capability-certificate-v1\n" followed by that hex digest, with the key in the directory whose RFC 7638 thumbprint is the kid.

Policy classes

Policy class	Called automatically?	Rule
Public read-only public_read_only	yes, to verify	May be called without credentials. CrawlCheck calls it only to check the declaration: GET with no input, on the scanned origin.
Authenticated read-only authenticated_read_only	never	Never called by CrawlCheck. An agent needs the user's own credentials and consent.
Reversible write reversible_write	never	Never invoked automatically. Needs the owner's written authorisation and a test account.
Irreversible write irreversible_write	never	Never invoked automatically. Deletes or changes something that cannot be undone.
Financial financial	never	Never invoked automatically. Moves money or creates a charge.
External communication external_communication	never	Never invoked automatically. Sends a message, email or notification to someone.
Identity and accounts identity	never	Never invoked automatically. Creates, signs in to or changes an account or credential.
Unknown unknown	never	Never invoked. Its effect cannot be read from the declaration, so it is treated as the riskiest case.
Metadata metadata	never	Nothing to invoke: a listing, a server card or a skill file, not an operation.