improve-doc

improve-doc is a skill for Claude Code from existential-birds/beagle. It costs 14 tokens per session (2,819 once invoked), scanned A, original, Apache-2.0.

A documentation review tool that examines a Markdown file, groups its sections by Diataxis type, and guides you through revisions. Diataxis is a documentation model that separates tutorials, how-to guides, explanations, and reference material.

In plain words
What is it for?
Use it with a Markdown document to review its headings and content, identify documentation problems, and refine each section interactively.
Why use it?
It helps find sections that serve the wrong purpose or need clearer structure before you edit them.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the beagle-docs plugin — 10 skills shipped together

Good fit Use it with a Markdown document to review its headings and content, identify documentation problems, and refine each section interactively.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/existential-birds/beagle/improve-doc
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 existential-birds/beagle --skill improve-doc
Clone the repo
git clone --depth 1 https://github.com/existential-birds/beagle

Made for: Claude Code.

Or install beagle-docs, the plugin that ships this one along with the rest of its 10 skills.

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 improve-doc

README.md
[![agentmods](https://agentmods.dev/badge/skills/existential-birds/beagle/improve-doc/github.svg)](https://agentmods.dev/skills/existential-birds/beagle/improve-doc)
Your own site
<a href="https://agentmods.dev/skills/existential-birds/beagle/improve-doc"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/improve-doc/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 improve-doc

Your own site · 80×15
<a href="https://agentmods.dev/skills/existential-birds/beagle/improve-doc"><img src="https://agentmods.dev/badge/skills/existential-birds/beagle/improve-doc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,819 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 $0.00014 $0.02819
Opus 5.5 $0.00006 $0.01128
Sonnet 5.5 $0.00003 $0.00564
Haiku 4.5 $0.00001 $0.00282

Measured 1mo ago against content hash 9befba453b3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

improve-doc 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.

plugins/beagle-docs/skills/improve-doc/SKILL.md · 381 lines

How it starts

The opening of the file, as written. The whole thing — 381 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Improve Doc

Analyze an existing markdown document, classify sections by Diataxis type, identify issues, and interactively refine each section.

Arguments

  • Path: Path to the markdown document to improve (required)

Workflow Overview

Invoke the improve-doc skill with a document path, e.g. improve-doc docs/guides/getting-started.md.

The skill runs in two phases:

  1. Analysis Phase: Parse document, classify sections, identify issues
  2. Refinement Phase: Interactive loop to improve each section

Gates

Hard sequencing — advance only when the pass condition is met (artifact or explicit user input, not assumed).

Before Phase 2 (refinement):

  1. Read — Full contents of the file at Path are loaded.
    • Pass: Enumerated sections (from # / ## / ### headings) cover every heading in the file; titles match the source.
  2. Core skill — docs-style is loaded (or its path read) before classification.
    • Pass: Analysis output reflects at least one concrete principle from that skill (name it or quote briefly).
  3. Handoff — User saw an analysis summary (template in Step 5 or equivalent) and entered start to begin refinement, or abort to exit.
    • Pass: If abort, no writes to Path. If start, proceed to Phase 2.

Before overwriting the file (Phase 2, Step 4):

  1. Choices — Every section with open issues has a terminal outcome: applied yes, unchanged skip, or modify loop finished with yes or skip.
    • Pass: No section left in a pending modify state unless the user aborted the whole session (then do not write).
  2. Skips — Content for every skip matches the original section text (copy preserved, not paraphrased).
    • Pass: Full block equality check against the initial read (line-for-line, including whitespace).
  3. Write — Only after the above.
    • Pass: Single save to Path; completion report notes backup or major restructure if applicable (Rules).

Read the full file on GitHub · 381 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. 1mo ago First seen · 381 lines · 14 tokens per session scan A 9befba453b3c

Subscribe to this mod's changes

improve-doc is a skill published in the GitHub repository existential-birds/beagle (82 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 14 tokens to every session and 2,819 once invoked, about $0.0001 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 2026-09-16.

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