MCP server giving AI agents a persistent, PTY-backed shell environment — real interactive sessions, deterministic prompt detection, and secret-safe input
B low
- recent drift inferred + 20
- tool safety inferred + 12
- trust mitigators mixed − 3
inferred mixed
The A–E grade is our heuristic synthesis — a "review this" prompt, not a verdict. Each factor is tagged by what backs it: attested (a verifiable record), reported (a third party's claim), or inferred (our own heuristic, e.g. permissions). See methodology.
grade last moved 1h ago · see ecosystem CVEs →
- B · 21 → B · 29
- A · 0 → B · 21
No known CVEs for this server.
- high dangerous code
committed secret: GitHub token, Anthropic key, OpenAI key, Google API key, GitHub fine-grained PAT, GitLab token, npm token, Slack token, Stripe live key, private key
prompt-surface
shipped agent-instruction files + hidden-content / dangerous-code findings —
quoted from the analyzed source
analyzed commit 759f015 · analyzer v33 · 1h ago
skills & prompt files 3
danger signals35
- committed secret Anthropic key Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :31
sk-ant…(41 chars, redacted) - committed secret OpenAI key Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :49
sk-AAA…(31 chars, redacted) - committed secret Google API key Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :65
AIzaSy…(39 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :133
ghp_01…(40 chars, redacted) - committed secret GitHub fine-grained PAT Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :143
github…(71 chars, redacted) - committed secret GitLab token Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :151
glpat-…(26 chars, redacted) - committed secret npm token Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :158
npm_01…(40 chars, redacted) - committed secret Slack token Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :313
xoxb-0…(40 chars, redacted) - committed secret Stripe live key Sertelegger-holdfast-759f015/crates/holdfast-core/data/redaction_default.toml :371
sk_liv…(32 chars, redacted) - committed secret private key Sertelegger-holdfast-759f015/crates/holdfast-core/src/attach/redact_stream.rs :73
PEM private key block (redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/attach/redact_stream.rs :417
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/audit.rs :418
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/config.rs :3186
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/diag.rs :216
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/mcp/detection.rs :365
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/mcp/tools.rs :5815
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/output/mod.rs :759
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/output/normalise.rs :530
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/output/prefix_index.rs :978
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/output/redact.rs :134
ghp_01…(40 chars, redacted) - committed secret Anthropic key Sertelegger-holdfast-759f015/crates/holdfast-core/src/output/redact.rs :406
sk-ant…(41 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/output/rules.rs :414
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/screen/mod.rs :2273
ghp_01…(40 chars, redacted) - committed secret private key Sertelegger-holdfast-759f015/crates/holdfast-core/src/screen/mod.rs :2489
PEM private key block (redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/secret/binding.rs :2377
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/src/session/mod.rs :2872
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/tests/attach_protocol.rs :1131
ghp_01…(40 chars, redacted) - committed secret private key Sertelegger-holdfast-759f015/crates/holdfast-core/tests/attach_protocol.rs :1181
PEM private key block (redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/tests/integration.rs :2963
ghp_01…(42 chars, redacted) - committed secret Anthropic key Sertelegger-holdfast-759f015/crates/holdfast-core/tests/integration.rs :2964
sk-ant…(41 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/tests/redaction_sweep.rs :661
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/tests/screen.rs :834
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast-core/tests/secrets.rs :4101
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/crates/holdfast/tests/attach_cli.rs :871
ghp_01…(40 chars, redacted) - committed secret GitHub token Sertelegger-holdfast-759f015/scripts/mcp-smoke.sh :293
ghp_01…(40 chars, redacted)
- recent drift +20 capability drift →
[](https://mcpobservatory.com/servers/github:Sertelegger/holdfast/security) Heuristic, inferred signals — false positives (legitimately powerful tools, forks, language ports) are expected. Treat each as "review this", not a verdict. See the ecosystem-wide picture on the security hub, or the fleet security of Sertelegger.