Skip to content
Back to skills

Fable Audit

ASecurity

Read-only gap check. Finds which of the 16 sections of Anthropic's Fable 5.1 prompting guide your CLAUDE.md, rules files, and agent system prompts are missing, which of your rules push against a section, and what the plugin already covers; the Opus 5 / Opus 5.5 / Sonnet 5.5 model notes are listed unscored. Changes nothing; it prints suggested wording to add and stops. For dated, stale or contradictory text to remove, use Claude Code's /doctor prompt-audit instead. Use /fable-setup to apply ch...

  • 57 stars
  • 0 votes
  • 0 copies
  • 1 view
  • Added September 19, 2026
ai-agents

Works with

  • claude code

Security analysis

A100/100

Pro scans all 2 files and shows the line behind each finding

Scanned September 29, 2026

npx -y skills add Junhan2/oh-my-fable --skill fable-audit --agent claude-code

Installs into .claude/skills of the current project.

Are you the author of Fable Audit?

Add the live security badge to your README. It updates with every re-scan.

Security grade badge for Fable Audit
[![Security: A — Skills Directory](https://www.skillsdirectory.com/api/skills/junhan2-fable-audit/badge)](https://www.skillsdirectory.com/skills/junhan2-fable-audit)

More formats (shields.io, HTML) on the badges page. Keep it an A: scan every change in CI with Pro.

Download with Pro
SKILL.md
---
name: fable-audit
description: Read-only gap check. Finds which of the 16 sections of Anthropic's Fable 5.1 prompting guide your CLAUDE.md, rules files, and agent system prompts are missing, which of your rules push against a section, and what the plugin already covers; the Opus 5 / Opus 5.5 / Sonnet 5.5 model notes are listed unscored. Changes nothing; it prints suggested wording to add and stops. For dated, stale or contradictory text to remove, use Claude Code's /doctor prompt-audit instead. Use /fable-setup to apply changes, /fable-status to see what is in effect. Triggers: "/fable-audit", "가이드 대조", "가이드에서 빠진 것", "check against the Fable guide", "which guide sections am I missing", "what does the prompting guide say that my rules lack".
---
# fable-audit · which guide sections your prompts are missing

This skill answers "which sections of the prompting guides are missing from my rules": gaps to add, and rules that
push against a section. Claude Code's own `/doctor prompt-audit` (2.1.283+) answers the other question, "what in my
rules is dated, stale or contradictory": old-model workarounds, stale paths and commands, instruction files that
disagree, to remove. The two are complementary; run both when tidying a setup, and don't duplicate the other's job
here (a line that is merely old or verbose is not a finding for this audit unless it conflicts with a section).

Checklist: `${CLAUDE_PLUGIN_ROOT}/skills/fable-audit/references/guide-sections.md` (16 sections, verdict rules,
conflict signals, suggested wording). Read it before judging anything; do not audit from memory.

**This skill never writes.** No Edit, no Write, no settings change, not even a "small obvious fix". A user's rule
that contradicts the guide is often deliberate. Print the finding and the suggested wording; the user decides,
and `/fable-setup` applies. If asked mid-run to fix something, say that `/fable-audit` is read-only and name the
command that does it.

## Arguments
No argument audits this machine's active prompt surface. Otherwise:
`<path>` one file or directory (an agent's system prompt, a project's rules folder) · `global` (`~/.claude` only) ·
`project` (the current directory only) · `plugin` (the plugin's own rule texts, for maintainers) ·
`section <n|slug>` (one section, in depth: fetch that section's anchor URL from the checklist header for the
live wording, then every place it is or isn't satisfied).

## Step 1 · Collect (one batch of reads, silent)
Default set:
- `./CLAUDE.md`, `./.claude/CLAUDE.md`, `~/.claude/CLAUDE.md` (honour `CLAUDE_CONFIG_DIR`)
- every `*.md` in `~/.claude/rules/` and `./.claude/rules/`
- `~/.claude/settings.json`, `./.claude/settings.json`, and `CLAUDE_CODE_EFFORT_LEVEL` (sections 1 and 14)
- the plugin's active rule text: `${CLAUDE_PLUGIN_ROOT}/hooks/always-on.md`, plus
  `autonomy-unattended.md` (two paragraphs) and `subagent.md`. Read `~/.claude/oh-my-fable.json` first; if the plugin is disabled
  or absent, skip these and say so in the header line, because then nothing is covered for free.
- when a path argument names a directory of agent prompts, each file in it is one audited surface

List the files you actually read, with a count. Never claim a section is missing from files you did not open;
scope every negative to the paths in that list.

## Step 2 · Judge each of the 16 sections
For each section apply the verdict rules in the checklist file:

`✅` present · `🟡` partial (say exactly what is missing) · `❌` absent · `⚠️` a rule contradicts the guide ·
`⚪` not applicable to this surface (harness- or setting-owned, or the work never hits it)

Two rules that decide most of the value of this audit:
- **Quote the evidence.** Every ✅, 🟡 and ⚠️ names the file and quotes the clause it rests on. A verdict with no
  quote is a guess; mark it 🟡 and say you could not confirm it.
- **Same meaning counts.** The guide's wording is not required. A rule that achieves the section's effect in the
  user's own words is ✅. Only a rule that pushes the *opposite* way is ⚠️.

Sections 8 and 9 are scored in halves and by item; see the checklist.

Then apply the model notes at the end of the checklist. A note gets a verdict only when the surface names its
model (`model:` in agent frontmatter, or the user said which model it runs on); otherwise print it once as "if
this surface runs on <the model the note names>" with no symbol. Notes are never part of the score.

## Step 3 · Report (one table, then three short lists)
```
Fable 5.1 guide audit · <surface> · N files
[table: # | section | verdict | where it is, or what is missing]
Score: X/Y prompt-scope sections (✅ counts 1, 🟡 counts 0.5). Setting: <effort finding>.
```
Y is the count of prompt-scope sections that apply to this surface — never 16 flat, and say which ones you
excluded and why. Then:

1. **Conflicts (⚠️) first**, most consequential first. For each: the clause, why it now works against the model,
   and the narrowest edit that keeps what the rule was protecting. Never propose deleting a rule outright when
   narrowing it preserves the original intent (the checklist calls this out for section 15).
2. **Gaps worth closing**, ranked by how often the surface hits them, not by section order. For each, the exact
   line to add and the file it belongs in. Prefer one agent's system prompt over a global rule when only that
   agent is affected.
3. **Already covered by the plugin**, one line, so the user doesn't re-add what the hook delivers.
4. **Model notes** (unscored), one line each, only the ones that apply to this surface.

Ask in the user's language; keep the section names in English so they match the guide's anchors.

## Step 4 · Close
One line naming what to do next: `/fable-setup` for delivery, mode and effort; hand edits for a user's own
CLAUDE.md; `/fable-status` to confirm what is live. Then one more line: "For dated, stale or contradictory text to
remove, run `/doctor prompt-audit` (Claude Code 2.1.283 or later); this audit only finds what is missing." Then one status line: DONE, DONE_WITH_CONCERNS (say which
files could not be read), or NEEDS_CONTEXT (say which path you need).

## Notes
- The checklist is a snapshot of the guide as of 2026-09-29; the model notes as of 2026-09-29 (Opus 5, Opus 5.5,
  Sonnet 5.5 guides). If the live guide has more or differently named
  sections, say so in the header line rather than silently auditing an old list.
- Auditing a Claude Code machine is the common case, so sections 4, 14 and 16 usually resolve to ⚪ or a setting
  finding. That is a correct result, not a thin one.

Files in this skill

  • SKILL.md5.1 KB
  • references/guide-sections.md8.3 KB

Attribution

Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.

Comments

Loading comments…

Newsletter

Get the weekly list of safe new skills, and the ones we pulled.