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.
npx agentmods add skills/simota/agent-skills/guardiannpx skills add simota/agent-skills --skill guardiangit clone --depth 1 https://github.com/simota/agent-skillsWrote 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/skills/simota/agent-skills/guardian)<a href="https://agentmods.dev/skills/simota/agent-skills/guardian"><img src="https://agentmods.dev/badge/skills/simota/agent-skills/guardian.svg" alt="Measured on agentmods" 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 | $0.00032 | $0.05838 |
| Opus 5 | $0.00016 | $0.02919 |
| Sonnet 5 | $0.00006 | $0.01168 |
| Haiku 4.5 | $0.00003 | $0.00584 |
Grade A, and why
guardian 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 3d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- guardian — 97% identical, 15 lines differ
How it starts
The opening of the file, as written. The whole thing — 311 lines — stays where its author put it; the contents beside it link to each section on GitHub.
What ships with it
24 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- _common 10 B
- reference/autorun-mode.md 4.1 KB
- reference/autorun-schema.md 622 B
- reference/branch-health.md 2.4 KB
- reference/branching-strategies.md 3.0 KB
- reference/collaboration-routing.md 7.6 KB
- reference/commit-analysis.md 2.9 KB
- reference/commit-conventions.md 3.0 KB
- reference/coverage-integration.md 2.5 KB
- reference/git-automation.md 3.0 KB
- reference/git-recipes.md 8.7 KB
- reference/history-audit.md 6.7 KB
- reference/history-reshape.md 8.5 KB
- reference/learning-loop.md 2.9 KB
- reference/output-templates.md 5.6 KB
- reference/pr-quality-scoring.md 3.3 KB
- reference/pr-ship-flow.md 11 KB
- reference/pr-split-strategy.md 13 KB
- reference/pr-workflow-patterns.md 6.4 KB
- reference/predictive-quality-gate.md 1.9 KB
- reference/recipes-index.md 1.8 KB
- reference/risk-assessment.md 4.2 KB
- reference/security-analysis.md 3.3 KB
- reference/squash-optimization.md 2.7 KB
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.
- 3d ago First seen · 311 lines · 32 tokens per session scan A 0cf99788e0cb
guardian is a skill published in the GitHub repository simota/agent-skills (75 stars, last pushed 4d ago), licensed MIT. It adds 32 tokens to every session and 5,838 once invoked, about $0.0002 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 2026-09-03.
Other skills, from other repositories
merge-queue
Process the Refinery merge queue - collect agent work, detect and resolve conflicts, merge in dependency order, and verify integration.
github-automation
GitHub workflow automation, PR management, issue tracking, and code review coordination. Integrates with GitHub Actions and repository management. Use when: PR creation, code review, issue management, release automation, workflow setup. Skip when: local-only changes, non-GitHub repositories.
git-integration
Git commit patterns, formats, and conventions for GSD methodology. Provides atomic commits per task, structured commit messages, planning file commits, branch management, and milestone tag operations.
audit-trail
Full traceability from PRD to code commit through the CCPM spec-driven pipeline.
strict-tdd
Strict RED->GREEN->REFACTOR test-driven development with enforcement. Never write production code before a failing test. Atomic commits per TDD cycle.
checkpoint-management
Git-backed state management for safe rollback. Create and restore checkpoints with tagged commits and metadata tracking.