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 skills add GentBajko/capstone --skill retrogit clone --depth 1 https://github.com/GentBajko/capstoneWrote 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/gentbajko/capstone/retro)<a href="https://agentmods.dev/skills/gentbajko/capstone/retro"><img src="https://agentmods.dev/badge/skills/gentbajko/capstone/retro/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/skills/gentbajko/capstone/retro"><img src="https://agentmods.dev/badge/skills/gentbajko/capstone/retro.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 | $0.00084 | $0.00160 |
| Opus 5 | $0.00042 | $0.00080 |
| Sonnet 5 | $0.00017 | $0.00032 |
| Haiku 4.5 | $0.00008 | $0.00016 |
Grade A, and why
retro 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 today.
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.
What it actually says
Capstone: retro
From this skill's base directory, read ../core/references/core.md
and ../core/references/core-authoring.md, then execute
../core/references/protocols/retro.md
exactly. An argument names the session to read; with none, it reads
the session in progress.
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.
- today First seen · 13 lines · 84 tokens per session scan A e5b12cc12a56
retro is a skill published in the GitHub repository GentBajko/capstone (4 stars, last pushed today), licensed Apache-2.0. It adds 84 tokens to every session and 160 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 2026-09-10.
Other skills, from other repositories
write-readme
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write-changelog
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docs
Generate and update living documentation — tech docs, user guides, philosophy overview. Composable building block for CLOSE and other skills.
project-map
Generates a compact structural orientation document (.agentic/project-map.md) so any agent can understand codebase structure without filesystem exploration. Invoked when onboarding to a codebase, exploring unfamiliar projects, or auditing code layout and conventions.
format-markdown
Formats Markdown files consistently using project-native tooling first (repo scripts/config), then safe fallback formatters, and verifies the result with lint/check commands. Invoked when the user asks to format markdown, tidy docs, normalize README files, or fix markdown style drift.
write-adr
Creates an Architecture Decision Record (ADR) documenting a significant technical decision. Follows the standard ADR format with context, decision, and consequences. Invoked when the user says "write an ADR", "document this decision", or "create an architecture record".