Agent Tool Risk Report

mcp.hubspot.com

Generated by the Conformant public-subset battery and anchored to the Sigstore/Rekor transparency log. The grade below is tamper-evident: recompute the report’s canonical hash and compare it with the Rekor entry.

https://mcp.hubspot.com/anthropic

public-subset battery v2.0.0 · Fri, 14 Aug 2026 07:38:36 GMT · report 81d7a821e9fc0629

Overall A (100/100). Cleared for connection review: no material findings on the public battery. Public-subset battery: several checks require vendor credentials; full coverage via Cleared-to-Connect.

Second axis · not part of the grade

Spec 2026-07-28 readiness

NOT OBSERVABLE

Not determinable from the public probe. Credential-gated endpoints do not complete an unauthenticated handshake, so the negotiated revision cannot be read. This is a coverage limit, not a finding.

3 of 6 signals evaluable on the public probe · deprecation windows close 2027-07-28

RDY-01Transport generationcurrent
Streamable HTTP: the transport the 2026-07-28 stateless core is built on.
RDY-02Protocol revisionn/a
Revision negotiation could not be observed.
RDY-03Stateless corecurrent
Operates without a session header, matching the 2026-07-28 stateless core.
RDY-04Client registrationpartial
Neither Dynamic Client Registration nor CIMD advertised: clients configure out of band.
RDY-05Cacheable tool catalogn/a
Tool catalog cache posture not observable.
RDY-06Deprecated capabilitiesn/a
Capability set not observable.

Readiness measures migration posture against the specification finalized 2026-07-28. It is reported separately because a well-authenticated server on deprecated transport is a migration risk, not a security defect — scoring both on one axis would misprice both. Signals that could not be evaluated are excluded from the score rather than counted as passing.

CFM-01AuthenticationPASS

Endpoint refuses unauthenticated MCP initialize.

CFM-02Authorization (OAuth)PASS

401 challenge with WWW-Authenticate and RFC 9728 protected-resource metadata: spec-conformant OAuth discovery.

CFM-03Tool poisoningN/A

Tool surface is behind authentication: requires the authenticated battery (Cleared-to-Connect).

CFM-04Scopes & least privilegeN/A

Tool surface is behind authentication: requires the authenticated battery (Cleared-to-Connect).

CFM-05Secrets exposureN/A

Server metadata is behind authentication: requires the authenticated battery (Cleared-to-Connect).

CFM-06Destructive-tool guardrailsN/A

Tool surface is behind authentication: requires the authenticated battery (Cleared-to-Connect).

CFM-08Transport securityPASS

TLS transport.

CFM-10Exposed configuration surfacePASS

No configuration or credential documents served at well-known paths.

CFM-09Command-injection exposure (advisory)INFO

Tool surface is behind authentication: the command-execution sink surface is not publicly visible. STDIO config-injection hardening (OX Security, 2026-04-15) is attested via Cleared-to-Connect, not remotely tested.

✔ anchoredsha256:81d7a821e9fc…4f4f56→ Sigstore/Rekor logIndex 2463224458verify ↗tamper-evident · independently checkable

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