A document-editing workflow for making settled material clearer, shorter, and easier to use. It covers polishing plans, specifications, task cards, runbooks, release notes, and other documents while preserving their decisions.

Use it to rewrite or finalize documents, improve headings and sentence flow, reduce unnecessary detail, and make operational instructions easier for other people to follow.

It removes repetition, vague wording, template clutter, and an overly artificial writing style after the substance is already decided. It also helps choose a suitable structure, such as short sections, bullets, tables, or a diagram.

tighten-doc — Skill for Claude Code and Codex by ccoalm

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 ccoalm/ccl-skills --skill tighten-doc

Clone the repo

git clone --depth 1 https://github.com/ccoalm/ccl-skills

Made for: Claude Code, Codex.

Or install ccl-skills, the plugin that ships this one along with the rest of its 33 skills, 4 commands, 7 hooks.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ccoalm/ccl-skills/tighten-doc/github.svg)](https://agentmods.dev/skills/ccoalm/ccl-skills/tighten-doc)

Your own site

<a href="https://agentmods.dev/skills/ccoalm/ccl-skills/tighten-doc"><img src="https://agentmods.dev/badge/skills/ccoalm/ccl-skills/tighten-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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ccoalm/ccl-skills/tighten-doc"><img src="https://agentmods.dev/badge/skills/ccoalm/ccl-skills/tighten-doc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 272 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 13,003 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.

Model	Per session	Once invoked
Fable 5.1	$0.00272	$0.13003
Opus 5	$0.00136	$0.06502
Sonnet 5	$0.00054	$0.02601
Haiku 4.5	$0.00027	$0.01300

Measured 2d ago against content hash 8e0515c398c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

tighten-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 2d ago.

The scan reads SKILL.md. This mod also ships 6 executable files (scripts/doc-lint-repo.py, scripts/doc-lint.py, scripts/figure-lint.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/tighten-doc/SKILL.md · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

tighten-doc — 文档写作与优化

Use this as the default document finalization and editing skill; new-substance authoring routes to the owner skill first. A deliverable doc is written for its reader (product / business / exec / teammate), not for the author. Default form = one-page operational/task manual: few short headings, enumerations as tables/bullets (one point per line), short sentences, no bracket piles, no template scaffolding.

When to use

Use any time you rewrite, tighten, polish, or finalize a doc someone else must read, after owner and scope are clear: strategy, plan, spec, task card, runbook, release note, or collaborative doc.

Three modes:

Draft: after the owner skill has settled the substance, turn rough intent, notes, meeting output, or task context into a readable first version. Route to an owner when substance is unsettled and the type matches an installed owner skill: spec/standards/guideline -> product-rd-workflow, test cases -> test-artifact-management, architecture -> architecture skill, code/correctness -> stack/review skill. For new standards/spec authoring, product-rd-workflow is the single entry; the hand-back marker is product-rd owner-ready with authority statement, doc-family layer, and enumeration evidence — after that, finish wording here. If that marker is absent for a standards/spec artifact, polish only locally and mark pre-owner blocked (share/publish gate below). Standalone non-spec artifacts without family references skip it. If no owner skill is installed or reachable, draft from the charter plus user/session-supplied substance — never invent substantive decisions; they stay owner/user-provided. 多轮文档先锁 charter：references/doc-charter-first.md
Rewrite: restructure an existing doc so decisions, owners, gates, and next actions are easier to scan.
Tighten: remove filler, duplication, AI tone, meta narration, and over-long sentences without deleting decisions.

先判文档类型，再定形态：读者是在用一件已存在的东西（tutorial / how-to / reference / explanation 四模式），还是要据此决定或执行一件尚未做完的事（方案·架构 / 调研 / 现状梳理 / 评审 / 计划）。两轴的判据、每类的首稿必答节、正文与证据分册、图形态，以及「只标记拆分候选、不自行拆分」的收尾边界，见 references/deliverable-doc-genre-skeletons.md。一页纸操作手册默认形态对应 how-to / reference，别硬套到其他类型上。

Read the full file on GitHub · 188 lines

Files

What ships with it

60 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.

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.

2d ago Changed 8e0515c398c5
7d ago Changed · +1 lines 75b0c8fb6580
10d ago First seen · 187 lines · 272 tokens per session scan A 63706d33ddc9

Subscribe to this mod's changes

tighten-doc is a skill published in the GitHub repository ccoalm/ccl-skills (6 stars, last pushed today), licensed Apache-2.0. It adds 272 tokens to every session and 13,003 once invoked, about $0.0014 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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