prompt-review

prompt-review is a skill for Claude Code from a1f/agent-templates. It costs 44 tokens per session (1,731 once invoked), scanned A, original, MIT.

A review tool for instruction files used by coding agents, including skills, agent prompts, rules, and a CLAUDE.md template. It checks their wording against five review criteria and can fix wording problems.

In plain words
What is it for?
Reviewing and repairing agent instruction files, or reporting issues without editing them.
Why use it?
Long or unclear instructions can cause an agent to miss important directions. This helps keep prompts easier to follow without changing their intended behavior.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions CLAUDE.md; mentions subagents.

Good fit Reviewing and repairing agent instruction files, or reporting issues without editing them.

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Install with agentmods
npx agentmods add skills/a1f/agent-templates/prompt-review
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.

Any agent
npx skills add a1f/agent-templates --skill prompt-review
Clone the repo
git clone --depth 1 https://github.com/a1f/agent-templates

Made for: Claude Code.

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 prompt-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/a1f/agent-templates/prompt-review/github.svg)](https://agentmods.dev/skills/a1f/agent-templates/prompt-review)
Your own site
<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.

agentmods 80×15 button for prompt-review

Your own site · 80×15
<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>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,731 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00044 $0.01731
Opus 5 $0.00022 $0.00865
Sonnet 5 $0.00009 $0.00346
Haiku 4.5 $0.00004 $0.00173

Measured 9d ago against content hash bb45002e8e51, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

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.

skills/prompt-review/SKILL.md · 119 lines

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.

Read the full file on GitHub · 119 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. 9d ago First seen · 119 lines · 44 tokens per session scan A bb45002e8e51

Subscribe to this mod's changes

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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