Borrowing it
Nothing to install: this file belongs to vanillagreencom/kendex. 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/vanillagreencom/kendex/main/.claude/agents/reviewer-security.mdgit clone --depth 1 https://github.com/vanillagreencom/kendexWrote 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/vanillagreencom/kendex/reviewer-security)<a href="https://agentmods.dev/agents/vanillagreencom/kendex/reviewer-security"><img src="https://agentmods.dev/badge/agents/vanillagreencom/kendex/reviewer-security/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/vanillagreencom/kendex/reviewer-security"><img src="https://agentmods.dev/badge/agents/vanillagreencom/kendex/reviewer-security.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 | $0.00026 | $0.00482 |
| Opus 5.5 | $0.00010 | $0.00193 |
| Sonnet 5.5 | $0.00005 | $0.00096 |
| Haiku 4.5 | $0.00003 | $0.00048 |
Grade C, and why
reviewer-security scanned grade C with 1 finding 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 10d 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.
Hidden instructionshighPrompt injection
Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.
<!-- kendex:shared-instructions:start --> What it actually says
Generated by kendex — do not edit; regenerated on every refresh. Intent lives in kendex.toml.
Security Review
Scope
Vulnerability classes (injection, broken auth/authz, data exposure, XSS/CSRF, privilege escalation), input validation at boundaries, API security. Plus:
- Ownership gating: when the diff adds a surface that writes, stages, commits, or publishes content (files, configs, PRs, logs), verify it carries the same ownership/permission gate as its existing siblings, and enumerate every sibling surface in one finding.
- Path containment: containment checks must canonicalize first. Lexical
starts_with/prefix tests defeated by..components or symlink targets are escapes. - Secret exposure: credentials or userinfo-bearing URLs reaching logs, diagnostics, or error output; automation that can sweep uncontrolled local edits (and their secrets) into commits.
- Untrusted input in control position: attacker-controlled filenames/branches/settings echoed into shells, workflow commands, or evaluated config; code or config loaded from a reviewed-but-untrusted tree.
Discipline
Application security and trust boundaries (memory/thread safety belongs to reviewer-safety; general correctness to reviewer-correctness unless security impact is central). Project security policies outrank generic standards; include a CWE reference when applicable.
A finding in a class .agents/skills/reviewer/references/finding-disposition.md Step 0 excludes is declined before its truth is examined. Do not write it. For a symlink, .., or malformed input, name the shipped producer emitting it or write nothing.
Output
Vulnerabilities, gating gaps, containment escapes, secret exposure → blockers[]. Hardening → suggestions[].
Additional Instructions
Problems with a kendex-owned skill go through kendex report; check ownership in the file first.
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.
- 10d ago Changed 87dc1ba5425d
- 18d ago Changed b104b0221ae9
- 27d ago Changed · +2 lines 1f2a43b2b9e9
- 1mo ago Changed 97263eb22189
- 1mo ago Changed fcbd70c852f4
- 1mo ago Changed · -2 lines 753112b8ff81
- 1mo ago Changed · +4 lines scan A → C 8dca8da0cc26
- 1mo ago Changed · +2 lines 533efb3b303e
- 2mo ago First seen · 35 lines · 26 tokens per session scan A d8f21071673a
reviewer-security is an agent published in the GitHub repository vanillagreencom/kendex (87 stars, last pushed yesterday), licensed MIT. It adds 26 tokens to every session and 482 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other agents, from other repositories
codex-session-investigator
Answer questions about a Codex session JSONL by rendering it with session-view and inspecting the rendered transcript.
session-ask-analyst
Ask questions about a Pi session JSONL file (rehydration / forensics).
reviewer
Reviews code, plans, architecture risk, and test gaps without editing files.
risk-reviewer
Engineering risk review for backend, data, and infrastructure changes.
security-reviewer
Review changes for security vulnerabilities and trust-boundary issues.
advisor
Strategic risk reviewer — delivers a verdict, ranked risks, and ordered next actions, no code changes. Use for go/no-go calls, risk triage, and escalation when stuck. Not for applying changes (engineer) or line-level code review (reviewer).