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 a1f/agent-templates --skill prompt-reviewgit clone --depth 1 https://github.com/a1f/agent-templatesWrote 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/a1f/agent-templates/prompt-review)<a href="https://agentmods.dev/skills/a1f/agent-templates/prompt-review"><img src="https://agentmods.dev/badge/skills/a1f/agent-templates/prompt-review/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/a1f/agent-templates/prompt-review"><img src="https://agentmods.dev/badge/skills/a1f/agent-templates/prompt-review.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 | $0.00044 | $0.01731 |
| Opus 5 | $0.00022 | $0.00865 |
| Sonnet 5 | $0.00009 | $0.00346 |
| Haiku 4.5 | $0.00004 | $0.00173 |
Grade A, and why
prompt-review 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prompt Review
Prompts are the product here, and they get worse by growing — a model reading a long file skips instructions in the middle of it. This reviews prompt files against five checks and, by default, fixes what fails.
The goal is a file a model follows end to end and acts on correctly. The checks are proxies for that. When two collide, the one that changes how the file is executed wins — an exact command earns its words. Raise nothing that would not change what a model does.
Wording only. A fix that drops a step, loosens a gate, renames a flag, or changes what a prompt returns is a behavior change: report it and leave the file alone. Invoking the skill is the permission to edit; a second run over a clean file changes nothing.
/prompt-review [--all] [--report-only]
1. Scope prompt files changed vs origin/main (--all = every prompt file)
2. Review five checks per file
3. Fix what wording can fix (--report-only skips this)
4. Report one table, one verdict
Phase 1 — Scope
Prompt files are skills/*/SKILL.md, agents/*.md, rules/*.md, and
templates/CLAUDE.md.template. Nothing else. Run from the repo root.
cd "$(git rev-parse --show-toplevel)"; SCRATCH=<the session scratch directory>
git rev-parse --verify origin/main >/dev/null || { echo "abort: origin/main missing"; exit 1; }
git diff --name-only --diff-filter=d origin/main...HEAD | grep -E \
'^(skills/[^/]+/SKILL\.md|agents/[^/]+\.md|rules/[^/]+\.md|templates/CLAUDE\.md\.template)$' \
> "$SCRATCH/scope.txt" || true # --all: ls the four patterns instead
xargs -r wc -lw < "$SCRATCH/scope.txt" # before-counts; over 500 lines is its own finding
--diff-filter=d drops deleted paths; || true keeps an empty match from aborting a strict
shell. Empty scope → print the verdict with zeros and stop. Past about five files, fan out one
read-only subagent per file, each returning its rows — never pull every file into one context.
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.
- 9d ago First seen · 119 lines · 44 tokens per session scan A bb45002e8e51
prompt-review is a skill published in the GitHub repository a1f/agent-templates (2 stars, last pushed 9d ago), licensed MIT. It adds 44 tokens to every session and 1,731 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 2026-08-31.
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