Borrowing it
Nothing to install: this file belongs to stainless-code/codemap. 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/stainless-code/codemap/main/.agents/skills/harden-pr/SKILL.mdgit clone --depth 1 https://github.com/stainless-code/codemapWrote 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/stainless-code/codemap/harden-pr)<a href="https://agentmods.dev/skills/stainless-code/codemap/harden-pr"><img src="https://agentmods.dev/badge/skills/stainless-code/codemap/harden-pr/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/stainless-code/codemap/harden-pr"><img src="https://agentmods.dev/badge/skills/stainless-code/codemap/harden-pr.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 | $0.00136 | $0.00381 |
| Opus 5.5 | $0.00054 | $0.00152 |
| Sonnet 5.5 | $0.00027 | $0.00076 |
| Haiku 4.5 | $0.00014 | $0.00038 |
Grade A, and why
harden-pr 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.
What it actually says
Harden PR
Goal: leave the PR / feature in pristine, maximum production state — every changed path shippable, verified, documented, and hygienic. Polish and harden what the PR already does; never change its intent or runtime behavior.
Local loop: parallel reviewer subagents → merge findings → fix in-bounds → re-verify → repeat until clean or cap → one final report.
Invoking this skill (/harden-pr, harden-pr lite, harden-pr full, harden-pr quick, harden-pr reconcile) is a run-to-completion command. The agent executes the full loop before ending the turn.
Sister skills: audit-pr-architecture (extended structural reviewer). Workflow (modes, roster, loop, git): WORKFLOW.md. Ledger: LEDGER.md. Mention babysit only in the final report (full mode) — never mid-loop.
What ships with it
2 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.
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 First seen · 22 lines · 136 tokens per session scan A f0d4d712ac34
harden-pr is a skill published in the GitHub repository stainless-code/codemap (8 stars, last pushed yesterday), licensed MIT. It adds 136 tokens to every session and 381 once invoked, about $0.0005 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 2026-08-31.
Other skills, from other repositories
roam
Codebase comprehension via roam-code CLI. Use when exploring codebases, planning modifications, debugging failures, assessing PR risk, or checking architecture health. Triggers on: understanding project structure, pre-change safety checks, finding symbols/files, blast radius analysis, affected tests, health scoring…
enola
Use Enola when investigating architecture, dependencies, blast radius, cross-repository relationships, structural regressions, or what a code change did to the system.
m1nd-first
Use when investigating a repository, searching for implementation, reviewing changes, working from specs/docs, or preparing a risky code change in an environment where m1nd is available. This doctrine makes m1nd the first investigative layer before grep, glob, or manual file reads, except when the task is pure…
ctxo-domain-fold
Use BEFORE changing code under a named domain context, BEFORE finishing a branch, and when adopting or tuning the domain config, to read the context's card, fold behaviour changes back into it and discover the repository's conventions.
coograph-review
Strict read-only review of the current changes for spec compliance, convention violations, logic bugs, and architecture. Every finding cites a verbatim quote from a fresh file read. Use after implementation, before declaring done.
ctxo-review-pr
Use when reviewing a PR, a diff, or recent changes, to get a full risk assessment in one call.