Getting it into your agent
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
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.
[](https://agentmods.dev/skills/adamdaw/claude-code-skills/brevity-enforcer)<a href="https://agentmods.dev/skills/adamdaw/claude-code-skills/brevity-enforcer"><img src="https://agentmods.dev/badge/skills/adamdaw/claude-code-skills/brevity-enforcer/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/adamdaw/claude-code-skills/brevity-enforcer"><img src="https://agentmods.dev/badge/skills/adamdaw/claude-code-skills/brevity-enforcer.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 | $0.00121 | $0.05285 |
| Opus 5 | $0.00060 | $0.02642 |
| Sonnet 5 | $0.00024 | $0.01057 |
| Haiku 4.5 | $0.00012 | $0.00528 |
Grade A, and why
brevity-enforcer 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 — 390 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Brevity enforcer
Shortens one named durable doc. It removes words, not decisions. Every pass has to survive one question: after the cut, can a reviewer still sign off on the same thing?
This skill is self-contained — the standards it enforces are stated here rather than delegated to a doc elsewhere. Where a repository carries its own ADR authoring guide, that guide wins and this file is the working procedure under it.
Invoked deliberately, on a named doc
Committed plan and design docs are a feature, and doc volume is never a review finding. This skill runs when someone points at a specific file and asks for a cut. It is not a roving critic and it does not go looking for long docs to trim.
If the doc is already inside budget and every section is inside its target, say so and cut nothing. A zero-edit pass is a valid, honest result. If it is inside budget but a section is over target, tighten that section in place and read the ceiling rule below before restructuring anything.
Two things a cut must never break
1. Register is set by doc type, not by the brevity advice
Generic brevity advice says "prefer the active voice." Durable governance docs are deliberately the opposite, and flipping them is worse damage than the length ever was.
| Doc type | Register |
|---|---|
| ADRs, durable specs, design docs, slice plans | Formal, technical, passive, impersonal. No personal name as the subject of a decision. |
| How-tos, runbooks, reference docs, guides | Direct and active. Imperative for instructions. |
| Chat, PR and ticket comments | Active. |
Decide the register from the doc type before the first edit, and hold it for the whole pass. Shortening a sentence is not license to rewrite it into a different voice.
What ships with it
2 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.
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 · 390 lines · 121 tokens per session scan A af66b52807a3
brevity-enforcer is a skill published in the GitHub repository adamdaw/claude-code-skills (2 stars, last pushed 20d ago), licensed MIT. It adds 121 tokens to every session and 5,285 once invoked, about $0.0006 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.
Other skills, from other repositories
orbit-notion
Open Orbit briefing skill — selected by the Orbit pipeline when Notion is the user's only connected connector, or when the user explicitly scopes their daily digest to Notion. Pulls the past 24 hours of document edits, comments, mentions, and database row changes from the user's authenticated Notion connection and…
instrument-data-to-allotrope
Convert laboratory instrument output files (PDF, CSV, Excel, TXT) to Allotrope Simple Model (ASM) JSON format or flattened 2D CSV. Use this skill when scientists need to standardize instrument data for LIMS systems, data lakes, or downstream analysis. Supports auto-detection of instrument types. Outputs include full…
baoyu-youtube-transcript
A tool for downloading the written captions, subtitles, chapter information, speaker labels, and cover image from a YouTube video using its URL or ID.
feishu
Work with Feishu or Lark bots, docs, sheets, bitables, approval flows, and OpenAPI/MCP setup without hardcoding credentials.
read
Reads URLs and PDFs by fetching source content, defaulting to concise summaries for plain read requests and clean Markdown when asked to convert, save, quote, cite, or feed downstream work. Use when users ask in any language to read, fetch, check, summarize, quote, cite, convert, or save a URL or PDF. Not for local…
overleaf-sync
A two-way connection between a local paper folder and Overleaf, a web-based LaTeX editor for writing research papers. It lets you move changes between the local files and the shared Overleaf project.