5 Claude Code Skills Every OpenClaw User Should Install Today
Philipp Schmid's "8 Tips for Writing Agent Skills" went semi-viral this week, and Twitter is suddenly full of "skills are the new prompts" takes. Most of them are abstract. This post is not. Here are five real Claude Code skills you can install in 60 seconds, each solving a concrete pain: commit messages, dead agents, model costs, architecture drift, and project bloat. All MIT licensed, all sitting in the awesome-openclaw-agents repo.
Skills Are the New Primitive
A Claude Code skill is a single SKILL.md file with YAML frontmatter. The frontmatter has two fields that matter: name and description. Claude Code reads the description and auto-invokes the skill when your prompt looks like a match. No slash command required. No copy-paste prompt library. It is the closest thing to dependency injection for your coding assistant.
The five skills below are the ones I reach for every day while building and shipping OpenClaw agents. Each one does a single thing, each one installs with a single cp -r, and each one replaces a task that used to take minutes of manual work. If you have Claude Code installed, you can have all five running in under five minutes.
Commits
git-commit-writer
Debug
openclaw-debugger
Cost
model-cost-compare
Diagrams
excalidraw-architecture
Audit
cost-optimizer
Skill 1: git-commit-writer
Point Claude Code at your staged changes and get a commit message that matches your repo's existing conventions. The skill runs git diff --staged to read the change, then git log --oneline -10 to learn your style. If your repo uses Conventional Commits, you get Conventional Commits. If it uses short sentence-case subjects, you get that instead. No config file, no style guide argument.
This is better than manual commit writing because you stop context-switching. The diff is already in Claude's window, the tone is inferred from history, and you can accept or tweak the message in one pass. After a week of using it you will feel the tax every time you have to write one by hand on a different machine.
cp -r skills/claude/git-commit-writer ~/.claude/skills//git-commit-writer
# or just ask:
"write a commit message for my staged changes"Skill 2: openclaw-debugger
Your bot is dead or misbehaving. This skill walks a six-step diagnosis checklist so you do not have to remember it: gateway status, agent logs, heartbeat, session file, provider configuration, and finally SOUL.md. At each step it tells you what it found and what the most likely cause is. The output is a short diagnosis report, not a wall of raw logs.
Use it the moment something feels off — before you start guessing. The checklist catches the boring problems (expired sessions, wrong provider env var, stale heartbeat) in seconds, so you only burn time on the interesting ones.
cp -r skills/claude/openclaw-debugger ~/.claude/skills/Agent: orion
Status: UNHEALTHY
1. Gateway OK (port 18789, uptime 4h)
2. Logs WARN — last entry 42 min ago, no errors
3. Heartbeat FAIL — last beat 38 min ago (expected <5 min)
4. Session OK (~/.openclaw/agents/orion/sessions/sessions.json)
5. Provider OK (ANTHROPIC_API_KEY present, reachable)
6. SOUL.md OK (no syntax issues)
Diagnosis: Heartbeat stopped. Session and provider are healthy —
restart the agent worker, do not wipe state.
Suggested fix:
openclaw agent --agent orion --restartSkill 3: model-cost-compare
Describe a task in plain English. The skill estimates token usage and returns a cost table across Opus 4.6, Sonnet 4.6, GLM-5.1, Minimax M2.7, and local Gemma 4. At the bottom it picks the cheapest model capable of the task and explains why it is capable — so you are not just optimizing for price, you are optimizing for fit.
r/openclaw this week is obsessed with cost, and for good reason: the gap between routing every prompt to Opus and routing only the hard ones is measured in hundreds of dollars a month for a busy solo dev. This skill makes the routing decision a five-second lookup instead of a gut call.
cp -r skills/claude/model-cost-compare ~/.claude/skills/Estimated tokens: ~14k in, ~2k out
Model Cost Capable? Notes
Opus 4.6 $0.34 yes overkill for summarization
Sonnet 4.6 $0.07 yes good balance
GLM-5.1 cloud $0.01 yes strong on structured output
Minimax M2.7 $0.01 yes fast, fine for templating
Gemma 4 (local) $0.00 yes slowest, no network
Recommendation: Sonnet 4.6 or GLM-5.1.
Use Sonnet if you want highest quality prose,
use GLM-5.1 if cost matters more than polish.Skill 4: excalidraw-architecture
Auto-generate or update an Excalidraw architecture diagram from the current state of your codebase. The skill walks your project, identifies the main components (entry points, services, data stores, external APIs), and writes or updates docs/architecture.excalidraw. Next time the codebase changes, rerun the skill — the diagram stays in sync instead of drifting into folklore.
Credit where it is due: the pattern of keeping a diagram-as-code file next to the repo and rebuilding it from source is one Bilgin Ibryam (@bibryam) has been writing about for a while. This skill is a pragmatic implementation of that idea aimed at single-repo OpenClaw projects, but the concept applies anywhere.
cp -r skills/claude/excalidraw-architecture ~/.claude/skills/Scanning repo...
Found 4 entry points (web, telegram-bot, cron, cli)
Found 3 services (orion, echo, radar)
Found 2 data stores (convex, sessions.json)
Found 3 external APIs (anthropic, github, notion)
Updating docs/architecture.excalidraw...
+ added cron entry point
~ moved radar to services group
- removed deprecated gateway node
Done. Open docs/architecture.excalidraw in Excalidraw to view.Skill 5: cost-optimizer
A one-shot audit of a project's Claude Code usage. The skill checks the usual suspects: bloated CLAUDE.md files inflating every context load, unused skills still sitting in ~/.claude/skills, oversized memory files, over-pinned Opus routing on tasks that do not need it, and prompts structured in a way that guarantees cache misses. Output is a prioritized list with estimated monthly savings.
Typical wins on a project that has been running for a few months: trimming a 600-line CLAUDE.md down to 150 lines, deleting three dead skills, and moving one recurring task off Opus. These small cleanups compound, especially if you run Claude Code many times per day.
cp -r skills/claude/cost-optimizer ~/.claude/skills/Cost audit — mission_control
Priority Finding Est. savings
HIGH CLAUDE.md is 612 lines (target <200) ~$18/mo
HIGH Opus pinned on daily funnel script ~$22/mo
MED 3 unused skills in ~/.claude/skills ~$2/mo
MED memory/MEMORY.md is 1.3 MB (archive) ~$4/mo
LOW cache miss on evening routine prompt ~$1/mo
Estimated monthly savings if all applied: ~$47
Suggested order: fix HIGH items first, they take 5 min each.How to Write Your Own Skill
The structure is almost insulting in its simplicity. A skill is one folder containing one SKILL.md file. The file starts with YAML frontmatter that has two fields — name and description — followed by the markdown instructions Claude Code loads when the skill is invoked.
The description field is the whole game. Claude Code uses it to decide when to auto-invoke your skill, so it must describe the trigger clearly and in the user's own words. "Generates commit messages" is fine. "Use when the user asks for a commit message, wants to describe staged changes, or says 'write me a commit'" is better. This is the single lever that separates a skill that gets used from one that rots.
Philipp Schmid's "8 Tips for Writing Agent Skills" is worth reading if you want a longer form treatment — the short version is: one skill, one job; write the description like a search query; keep instructions concrete; and test the invocation before you ship. The five skills in this post all follow that shape. Open any of them and copy the structure.
---
name: git-commit-writer
description: Use when the user asks for a commit message,
wants to describe staged changes, or says "write me a commit".
Reads git diff --staged and git log --oneline -10 to match
repo conventions.
---
# git-commit-writer
Steps:
1. Run: git diff --staged
2. Run: git log --oneline -10
3. Infer the repo's commit style from recent history.
4. Draft a commit message that matches.
5. Output the message in a code block for easy copy-paste.Why Claude Code Skills Matter for OpenClaw Users
OpenClaw agents and Claude Code sessions live side by side in most real workflows. You build agents in Claude Code, debug them in Claude Code, ship them from Claude Code, and then go build the next one. Anything that speeds up the editor speeds up the agent-building pipeline — and the gains compound because you iterate many times per agent.
The skill ecosystem is still small. A few dozen public skills exist across GitHub at the time of writing, most published in the last few weeks. That is rare air. First-mover advantage is real here: the people writing skills now are the ones whose names show up when anyone searches for one later. If you have a repeatable task in your workflow and no skill covers it yet, write one. It takes less time than this paragraph did.
Install the 5 Skills
All five skills live in the awesome-openclaw-agents repo under skills/claude. Clone, copy, done.
git clone https://github.com/mergisi/awesome-openclaw-agents.git
cd awesome-openclaw-agents
cp -r skills/claude/git-commit-writer ~/.claude/skills/
cp -r skills/claude/openclaw-debugger ~/.claude/skills/
cp -r skills/claude/model-cost-compare ~/.claude/skills/
cp -r skills/claude/excalidraw-architecture ~/.claude/skills/
cp -r skills/claude/cost-optimizer ~/.claude/skills/Browse the full list here: github.com/mergisi/awesome-openclaw-agents/tree/main/skills/claude.
Related Guides
Frequently Asked Questions
Do Claude Code skills work with OpenClaw agents?
Not directly. Claude Code skills live in ~/.claude/skills and are invoked by Claude Code during your coding sessions — not by a deployed OpenClaw agent at runtime. What they do is speed up the dev loop around your agents. When you are building, debugging, and shipping OpenClaw agents, skills like openclaw-debugger and git-commit-writer shave minutes off every iteration. Think of them as tooling for the human building the agent, not tooling the agent itself runs.
How do skills differ from prompts or slash commands?
A prompt is text you paste into a chat. A slash command is a shortcut you type manually. A skill is a stored, discoverable instruction set with YAML frontmatter that Claude Code auto-invokes based on its description field. When you ask 'write a commit message for my staged changes,' Claude Code scans available skills, matches the description, and loads the skill — no manual trigger required. Skills persist across sessions, live in a known directory, and can be version-controlled and shared like any other file.
Can I chain multiple skills in one response?
Yes. Claude Code can invoke several skills in a single response when the task requires it. For example, you might ask for a cost audit and a commit message in the same prompt — Claude Code can load cost-optimizer, run the audit, then load git-commit-writer to draft a commit for the changes it recommends. The skill system is composable by design.
Do Claude Code skills work offline?
Yes. A skill is a single SKILL.md markdown file with YAML frontmatter. There is no network call to load or invoke a skill — everything runs locally on your machine. The only network dependency is the Claude Code model call itself, which is true of any Claude Code session. Skills add zero runtime overhead beyond the text they inject into context.
Where can I find more skills to install?
The awesome-openclaw-agents repo has a growing skills/claude directory with MIT-licensed skills you can copy into ~/.claude/skills. The ecosystem is still early — a few dozen public skills exist across GitHub at the time of writing. Early adopters who share their own skills are getting the most visibility. If you build a skill that solves a real problem, opening a PR to awesome-openclaw-agents is a fast way to share it.
Ship the agent the skills helped you build
CrewClaw generates a complete, deployable OpenClaw agent package — SOUL.md, config, Docker, Telegram bot, and all the files you need to run it. Skills speed up the building. CrewClaw handles the shipping. Future releases will bundle recommended skills directly into your agent deploy package.
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