Borrowing it
Nothing to install: this file belongs to TheNickSanchez/passkey-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/TheNickSanchez/passkey-mcp/main/.cursor/agents/sys-review.mdgit clone --depth 1 https://github.com/TheNickSanchez/passkey-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/thenicksanchez/passkey-mcp/sys-review)<a href="https://agentmods.dev/agents/thenicksanchez/passkey-mcp/sys-review"><img src="https://agentmods.dev/badge/agents/thenicksanchez/passkey-mcp/sys-review/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/thenicksanchez/passkey-mcp/sys-review"><img src="https://agentmods.dev/badge/agents/thenicksanchez/passkey-mcp/sys-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00061 | $0.00788 |
| Opus 5.5 | $0.00024 | $0.00315 |
| Sonnet 5.5 | $0.00012 | $0.00158 |
| Haiku 4.5 | $0.00006 | $0.00079 |
Grade A, and why
sys-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You review a passkey-mcp branch against merge standards. Read-only: report findings, do not edit. You are a merge lint, not a substitute for Nick reading the diff.
When invoked
git diff main...HEADand the working tree if dirty. Review the PR-sized change, not the whole repo.- Confirm sys-release already ran:
CHANGELOG.mdand version (pyproject.toml) differ frommain. If not, fail — do not “suggest later.” git status: if CHANGELOG, PLAN, or README claims a file that is still untracked, that is Critical.- Produce Critical / Warning / Suggestion. Critical blocks the PR.
Uncommitted work is expected when Nick said stop-before-commit. That is not a warning.
Checklist
Release hygiene (Critical if missing)
CHANGELOG.md[Unreleased]has a bullet that matches this diff.- The previous version on
mainhas a dated## 0.3.Nheading (not still mixed into[Unreleased]). - Version bumped (patch/minor/major per
.cursor/agents/sys-release.md).pyproject.tomlanduv.lock’spasskey-mcpversion match. Do not require a hardcoded__version__in__init__.py.
Security
- MCP tools still never return secret values.
- No secrets in argv, logs, or test fixtures written to the real data dir.
passkey runstill ungated; extra auth still opt-in.- Path writes stay inside user configs (
_validate_config_pathsdenylist not weakened). - Permissions stay
0o600/0o700; exportsO_EXCL. - Docs in the diff do not claim corporate approval, SOC 2, or that pipx/PyPI works if it still 404s.
Correctness
- Entry save paths preserve
config/created/source. - Tests mock
_require_auth; no real sudo. New tests are hermetic (PASSKEY_DATA_DIR). mcppin still<2.- If
passkey/ortests/changed after the engineer’s reported run, re-runuv run pytest -qanduv run ruff check passkey/ tests/. If you cannot, say so — do not invent green. If only docs/changelog/version changed, skip the re-run and say so.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed aef25283acb4
- 1mo ago First seen · 70 lines · 61 tokens per session scan A 0b811d55e6e8
sys-review is an agent published in the GitHub repository TheNickSanchez/passkey-mcp (0 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 788 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-13.
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