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Sentinel Payment Boundary Tools

MCPB · SENTINEL-AGENT-PAYMENT-BOUNDARY-V0.4.1.MCPB · SCANNED AUG 3

Read-only payment-boundary preflights plus an unsubmitted public quote-request draft tool.

+5 this week 42 Trust /100
Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security13
  • Malware scan not yet available for this package.Unverified
  • CVE data not yet available for this package.Unverified
  • No install/post-install scripts declared.Pass
  • Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency32
Schema Quality & AI Usability69
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (fair).Partial
  • Tool/resource definitions use about 474 tokens (~94/item across 5 items; 3 tools + 2 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
  • Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage84
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 44% of tool parameters carry a description.Partial
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

mcpb · sentinel-agent-payment-boundary-v0.4.1.mcpb

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Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 3 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Aug 26 +12
    • Security disclosure: fail → unverified functional
    • Schema quality: unverified → fair functional
    • Stability: unverified → 0.23 functional
    • MCP protocol: unverified → pass functional
    • Dependency health: unverified → partial functional
    • Maintenance: unverified → pass functional
  • 1 Aug 26 −1
    • Maintenance: pass → unverified functional
  • 31 Jul 26 −7
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 −2
    • Maintenance: pass → unverified functional
  • 28 Jul 26 +2
    • Maintenance: unverified → pass functional
  • 27 Jul 26 37

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Analysed mcpb/https://github.com/TerminallyLazy/sentinel-recovery-support/releases/download/v0.4.1/[email protected]

Provenance none

Ecosystem: mcpb · Outcome: none

Dependencies 94 packages

94 packages in the resolved dependency tree · 94 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 3 exposed · ~320 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
preflight_agent_payment_boundary ~99

Deterministically inspect one or two inline public agent/payment documents for authority, quote, replay, receipt, wallet-secret, and integrity boundaries. This free preflight does not fetch URLs, execute content, submit a request, or move funds.

NameTypeReqDescription
documentsarrayyesOne or two inline public documents, at most 100 KiB combined.
questionstringOptional non-sensitive context; it does not change the fixed checks.
NameTypeReqDescription
disclaimerstringyes
escalationobjectyes
findingsarrayyes
kindstringyes
schemaVersionstringyes
scopeobjectyes
summaryobjectyes

No examples provided.

preflight_x402_v2_payment_required ~77

Deterministically inspect one decoded inline x402 v2 PaymentRequired JSON document under a closed-world exact-EVM EIP-3009 Sentinel safety profile. This free preflight does not fetch URLs, execute content, verify signatures or settlement, connect a wallet, or move funds.

NameTypeReqDescription
documentobjectyes
NameTypeReqDescription
disclaimerstringyes
escalationobjectyes
findingsarrayyes
kindstringyes
limitationsobjectyes
schemaVersionstringyes
scopeobjectyes
summaryobjectyes

No examples provided.

prepare_agent_payment_boundary_quote_request ~144

Prepare a complete public GitHub quote-request draft for Sentinel's fixed-scope Agent Payment Boundary Review from one or two public HTTPS URLs without credentials, query strings, fragments, or non-public hosts. This local read-only tool does not submit the request, fetch URLs, connect a wallet, move funds, authorize payment, or create a service entitlement.

NameTypeReqDescription
intendedUsestringOptional public question or intended use for the written review.
preferredFormatstring
publicDocumentUrlsarrayyes
requestTransportstringyes
serviceIdstringyes
timingNeedstringOptional public timing need.
NameTypeReqDescription
completebooleanyes
contractobjectyes
destinationobjectyes
kindstringyes
packetStatusstringyes
requestobjectyes
requestBodystringyes
requestTitlestringyes
requestTransportstringyes
safetyobjectyes
schemaVersionstringyes
serviceIdstringyes
servicePriceUsdnumberyes
submissionRequirementsobjectyes

No examples provided.