io.github.cliwant/mcp-sam-gov

What we checked

Six static checks, weighted by risk. Every result reflects only what could be observed in the published package and repository — never intent.

• Injection surface

  unscannable25% of grade

  Tool descriptions/manifest scanned for instruction-injection patterns (imperatives at the model, hidden text, 'ignore previous', data-exfil URLs).

  No tool descriptions, server instructions, prompts, or resources were fetched; nothing to scan for injection.

• Supply chain

  pass25% of grade

  Package provenance: namespace verification, repo linkage, maintainer count, account age, postinstall scripts, typosquat distance.

  repository linkage verified

• Credential hygiene

  pass15% of grade

  How the server takes secrets (env vs plaintext config vs hardcoded); secrets appearing in tool schemas.

  Reads secrets from the environment (e.g. src/bea.ts) — the recommended intake shape. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  warn15% of grade

  Declared tools vs. breadth (filesystem, network, exec); flags shell-exec and unbounded filesystem access.

  discloses broad/destructive filesystem access: src/bls.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/sam-gov/client.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/clinicaltrials.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/cms.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/cpsc.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/datagov-catalog.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/edgar.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/epa-envirofacts.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/gao.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/nhtsa.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/nvd.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/opengov.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/server.ts: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/usitc.ts: path traversal ('../') combined with file access Capability DISCLOSURE, not a verdict: static analysis sees the primitive is present and reachable, not whether its use is attacker-controlled.

• Version behavior

  fail10% of grade

  Diff of tool definitions between versions; new permissions or changed descriptions in a patch release (the postmark-mcp class).

  vs prior 0.3.0 (major bump): new capability primitive(s) in source: child_process; new hardcoded outbound host/BCC destination(s): api.census.gov, api.data.gov, api.fda.gov, api.fdic.gov, api.fiscaldata.treasury.gov, api.gsa.gov, api.nsf.gov, api.stlouisfed.org, api.us.socrata.com, api.weather.gov, apps.bea.gov, bwt.cbp.gov, clinicaltrials.gov, data.bls.gov, data.cms.gov, data.epa.gov, data.sec.gov, dataportal.dol.gov, echodata.epa.gov, efts.sec.gov, evergreen.data.socrata.com, evil, falextracts.s3.amazonaws.com, fiscaldata.treasury.gov, fred.stlouisfed.org, geocoding.geo.census.gov, hts.usitc.gov, lda.senate.gov, maps2.dcgis.dc.gov, npiregistry.cms.hhs.gov, nvd.nist.gov, open.fda.gov, open.gsa.gov, procurement.opengov.com, projects.propublica.org, raw.githubusercontent.com, registry.npmjs.org, sanctionssearch.ofac.treas.gov, services.arcgis.com, services1.arcgis.com, services6.arcgis.com, www.acq.osd.mil, www.acquisition.gov, www.bls.gov, www.cisa.gov, www.courtlistener.com, www.fema.gov, www.fpds.gov, www.gao.gov, www.saferproducts.gov, www.sba.gov, www.sec.gov, www.treasury.gov, www.w3.org.

• Transport config

  warn10% of grade

  Remote servers: TLS and auth mode (none/token/OAuth). Local servers: whether the manifest indicates it phones home.

  manifest/source references telemetry behavior — disclosure