A command that rewrites a Markdown file in a shorter, more direct style while keeping code, links, paths, and headings. Markdown is a plain-text format commonly used for documentation.

Use it to shorten files such as CLAUDE.md or architecture documentation, with the compressed version saved beside the original.

Long documentation can use unnecessary words and tokens, making it slower to read and more expensive to process. The original file is kept as a backup.

How j4flmao/agent-skills configures Claude Code and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to j4flmao/agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/j4flmao/agent-skills/main/.opencode/commands/compress.md

Clone the repo

git clone --depth 1 https://github.com/j4flmao/agent-skills

Made for: Claude Code, OpenCode.

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/commands/j4flmao/agent-skills/compress/github.svg)](https://agentmods.dev/commands/j4flmao/agent-skills/compress)

Your own site

<a href="https://agentmods.dev/commands/j4flmao/agent-skills/compress"><img src="https://agentmods.dev/badge/commands/j4flmao/agent-skills/compress/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/commands/j4flmao/agent-skills/compress"><img src="https://agentmods.dev/badge/commands/j4flmao/agent-skills/compress.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 148 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	$0.00000	$0.00148
Opus 5.5	$0.00000	$0.00059
Sonnet 5.5	$0.00000	$0.00030
Haiku 4.5	$0.00000	$0.00015

Measured 2mo ago against content hash df7a129558f2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

compress 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 2mo 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.

.opencode/commands/compress.md · 22 lines

What it actually says

/compress — Compress a file to caveman-style

Rewrite a .md file with output compression rules applied. Saves original as <filename>.original.md.

Usage

/compress CLAUDE.md
/compress docs/architecture.md

Rules

Strip: articles, filler, pleasantries, hedging, meta, transitions
Keep: code blocks, URLs, file paths, headings intact
Write pattern: [thing] [action] [reason]. [next step].
Save original: <filename>.original.md

Output

Compressed: path/to/file.md (N tokens → M tokens, -X%)
Backup: path/to/file.original.md

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.

2mo ago First seen · 22 lines · 0 tokens per session scan A df7a129558f2

Subscribe to this mod's changes

compress is a command published in the GitHub repository j4flmao/agent-skills (38 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 148 tokens. 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 2026-08-30.

Writing and docs

compress next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
compressj4flmao/agent-skills	Command	38	3d ago	MIT	A	0	Claude Code, OpenCode
checklistgithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	148k	yesterday	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	148k	yesterday	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	148k	yesterday	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	148k	yesterday	MIT	A	14	Claude Code

agent-skills: Command for Claude Code