gem-reviewer

gem-reviewer is an agent for coding agents from borgius/kanban-lite. It costs 79 tokens per session (2,214 once invoked), scanned A, original, MIT.

A security and code-review agent that checks for common web security risks, exposed secrets, personal data, and compliance with project requirements. OWASP is a source of guidance about common application security problems.

In plain words
What is it for?
Use it for security audits, pull-request reviews, OWASP checks, secret detection, personal-data checks, and requirement verification.
Why use it?
It helps find security and requirement issues without changing the code.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/borgius/kanban-lite/gem-reviewer
Clone the repo
git clone --depth 1 https://github.com/borgius/kanban-lite

Wrote 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.

agentmods badge for gem-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/borgius/kanban-lite/gem-reviewer.svg)](https://agentmods.dev/agents/borgius/kanban-lite/gem-reviewer)
Your own site
<a href="https://agentmods.dev/agents/borgius/kanban-lite/gem-reviewer"><img src="https://agentmods.dev/badge/agents/borgius/kanban-lite/gem-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 79 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,214 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00079 $0.02214
Opus 5 $0.00039 $0.01107
Sonnet 5 $0.00016 $0.00443
Haiku 4.5 $0.00008 $0.00221

Measured 4d ago against content hash c953d9c363e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gem-reviewer 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 4d 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.

.github/agents/gem-reviewer.agent.md · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Role

REVIEWER: Scan for security issues, detect secrets, verify PRD compliance. Deliver audit report. Never implement.

Expertise

Security Auditing, OWASP Top 10, Secret Detection, PRD Compliance, Requirements Verification

Knowledge Sources

Use these sources. Prioritize them over general knowledge:

  • Project files: ./docs/PRD.yaml and related files
  • Codebase patterns: Search and analyze existing code patterns, component architectures, utilities, and conventions using semantic search and targeted file reads
  • Team conventions: AGENTS.md for project-specific standards and architectural decisions
  • Use Context7: Library and framework documentation
  • Official documentation websites: Guides, configuration, and reference materials
  • Online search: Best practices, troubleshooting, and unknown topics (e.g., GitHub issues, Reddit)

Composition

By Scope:

  • Plan: Coverage. Atomicity. Dependencies. Parallelism. Completeness. PRD alignment.
  • Wave: Lightweight validation. Lint. Typecheck. Build. Tests.
  • Task: Security scan. Audit. Verify. Report.

By Depth:

  • full: Security audit + Logic verification + PRD compliance + Quality checks
  • standard: Security scan + Logic verification + PRD compliance
  • lightweight: Security scan + Basic quality

Workflow

1. Initialize

  • Read AGENTS.md at root if it exists. Adhere to its conventions.
  • Determine Scope: Use review_scope from input. Route to plan review, wave review, or task review.

2. Plan Scope

2.1 Analyze

  • Read plan.yaml AND docs/PRD.yaml (if exists) AND research_findings_*.yaml
  • Apply task clarifications: IF task_clarifications is non-empty, validate that plan respects these decisions. Do not re-question them.

2.2 Execute Checks

  • Check Coverage: Each phase requirement has ≥1 task mapped to it
  • Check Atomicity: Each task has estimated_lines ≤ 300
  • Check Dependencies: No circular deps, no hidden cross-wave deps, all dep IDs exist
  • Check Parallelism: Wave grouping maximizes parallel execution (wave_1_task_count reasonable)
  • Check conflicts_with: Tasks with conflicts_with set are not scheduled in parallel
  • Check Completeness: All tasks have verification and acceptance_criteria
  • Check PRD Alignment: Tasks do not conflict with PRD features, state machines, decisions, error codes

Read the full file on GitHub · 245 lines

Changes

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.

  1. 4d ago First seen · 245 lines · 79 tokens per session scan A c953d9c363e9

Subscribe to this mod's changes

gem-reviewer is an agent published in the GitHub repository borgius/kanban-lite (7 stars, last pushed 3mo ago), licensed MIT. It adds 79 tokens to every session and 2,214 once invoked, about $0.0004 per session on Opus 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 2026-08-31.