Claude Code Agent Development
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
Audits token waste and cost across Claude Code, Codex, OpenClaw, Hermes and OpenCode, with dollar savings.
Install Fleet Auditor
$ npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install alexgreensh/token-optimizer fleet-auditor --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/alexgreensh/token-optimizer.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/fleet-auditor .claude/skills/fleet-auditor && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "fleet-auditor" agent skill from https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditor into .claude/skills/fleet-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fleet-auditor", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditorType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install alexgreensh/token-optimizer fleet-auditor --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexgreensh/token-optimizer.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/fleet-auditor .agents/skills/fleet-auditor && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "fleet-auditor" agent skill from https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditor into .agents/skills/fleet-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fleet-auditor", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install alexgreensh/token-optimizer fleet-auditor --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexgreensh/token-optimizer.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/fleet-auditor .cursor/skills/fleet-auditor && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "fleet-auditor" agent skill from https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditor into .cursor/skills/fleet-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fleet-auditor", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/alexgreensh/token-optimizer.git --path skills/fleet-auditor--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install alexgreensh/token-optimizer fleet-auditor --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexgreensh/token-optimizer.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/fleet-auditor .gemini/skills/fleet-auditor && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "fleet-auditor" agent skill from https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditor into .gemini/skills/fleet-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fleet-auditor", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install alexgreensh/token-optimizer fleet-auditorInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/alexgreensh/token-optimizer.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/fleet-auditor .github/skills/fleet-auditor && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "fleet-auditor" agent skill from https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditor into .github/skills/fleet-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fleet-auditor", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install alexgreensh/token-optimizer fleet-auditor --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexgreensh/token-optimizer.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/fleet-auditor .opencode/skills/fleet-auditor && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "fleet-auditor" agent skill from https://github.com/alexgreensh/token-optimizer/tree/main/skills/fleet-auditor into .opencode/skills/fleet-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fleet-auditor", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
fleet-auditor- GitHub stars
- 2.5k
- Token cost
- ~1.5k tokens
- SKILL.md length
- 475 words
- Files
- 6 (incl. scripts, references)
- Skills in repo
- 6
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Audits token waste and cost across Claude Code, Codex, OpenClaw, Hermes and OpenCode, with dollar savings.
- Works in 6 steps: Initialize → Scan → Audit → …
- Running several agent systems
- SKILL.md covers Phase 0: Initialize, Phase 1: Scan, Phase 2: Audit and Phase 3: Present Findings, plus 5 more sections
- Runs Python scripts from its folder; calls python3
What it does
Fleet Auditor is an agent skill from alexgreensh/token-optimizer. Audits token waste and cost across Claude Code, Codex, OpenClaw, Hermes and OpenCode, with dollar savings. Use when running several agent systems or suspecting idle heartbeats burn tokens.
Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `references/fleet-systems.md`, `references/report-template.md` and `references/waste-patterns.md`).
It sits in Agent Workflows. The repository describes itself as: Find the ghost tokens. Fix them. Survive compaction. Avoid context quality decay.
When your agent uses it
- Running several agent systems
- Suspecting idle heartbeats burn tokens
Example prompts
- “Use the fleet-auditor skill to audit token waste and cost across Claude Code, Codex, OpenClaw, Hermes and OpenCode, with dollar savings”
- “/fleet-auditor”
Requirements
- Python 3
Workflow steps
6 steps, taken from the step headings in SKILL.md.
- Initialize
- Scan
- Audit
- Present Findings
- Dashboard (optional)
- Deep Dive (optional)
What it can do on your machine
Read from SKILL.md and the folder at commit 723c19b. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 2 files in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python3
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Fleet Auditor loads about 1.5k tokens when it runs, and up to ~4.2k if it reads all its reference files. Until then it costs about 51 tokens; SKILL.md has 475 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 475 words (~1,533 tokens).
“Token Optimizer's own skills (token-optimizer, token-coach, token-dashboard, fleet-auditor) are the measurement layer, so leave them out of every removal, archive, trimming, disabling or consolidation suggestion; deleting them to save a few hundred tokens defeats the audit.”
- name
- fleet-auditor
Files
SKILL.md and 5 other files (scripts, references) in skills/fleet-auditor of alexgreensh/token-optimizer.
- SKILL.md
- references/fleet-systems.md
- references/report-template.md
- references/waste-patterns.md
- scripts/fleet.py
- scripts/shared.py
Open the folder on GitHubat commit 723c19b
Compare with similar skills
Fleet Auditor next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Fleet Auditor this skillalexgreensh/token-optimizer | 2.5k | — | ~1.5k | Automated safety check: Pass | Custom licence | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 7 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Copilot Session Failure Analysisdotnet/maui | 23k | — | ~3.4k | Automated safety check: Pass | MIT | |
| Mem0 CLI Memory Commandsmem0ai/mem0 | 67k | — | ~2k | Automated safety check: Notes | Apache-2.0 | |
| Create Agentvectorize-io/hindsight | 48k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Google Antigravity SDKgoogle-antigravity/antigravity-sdk-python | 3.7k | — | ~2.1k | Automated safety check: Notes | Apache-2.0 |
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- Official
- Official
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More from alexgreensh/token-optimizer
Token Optimizer
alexgreensh/token-optimizer
Audits a Claude Code or Codex setup for context-window waste, fixes it with the user's approval, and measures the saving.
Resume Checkpoint
alexgreensh/token-optimizer
Pulls a prior session's checkpoint as fenced, scrubbed recovery context.
Token Coach
alexgreensh/token-optimizer
Coaches a token-efficient Claude Code or Codex setup from the user's own usage data.
Token Dashboard
alexgreensh/token-optimizer
Opens the Token Optimizer dashboard in the browser (context usage, quality, savings).
Token Optimizer
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Audit your OpenClaw setup for token waste, context bloat, and cost optimization opportunities
Related
Categories
Questions about Fleet Auditor
What does Fleet Auditor do?
Audits token waste and cost across Claude Code, Codex, OpenClaw, Hermes and OpenCode, with dollar savings. Fleet Auditor is an agent skill from alexgreensh/token-optimizer. Audits token waste and cost across Claude Code, Codex, OpenClaw, Hermes and OpenCode, with dollar savings.
When should I use Fleet Auditor?
Fleet Auditor fits situations like: running several agent systems; suspecting idle heartbeats burn tokens.
How do I install Fleet Auditor in Claude Code?
Run `npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a claude-code`. Or copy the skill folder (skills/fleet-auditor in alexgreensh/token-optimizer) into .claude/skills/fleet-auditor in your project. Claude Code loads it when a task matches its description.
How do I install Fleet Auditor in Codex?
Run `npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a codex`. Or copy the skill folder (skills/fleet-auditor in alexgreensh/token-optimizer) into .agents/skills/fleet-auditor in your project. Codex loads it when a task matches its description.
Can I use Fleet Auditor in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add alexgreensh/token-optimizer --skill fleet-auditor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/fleet-auditor, .gemini/skills/fleet-auditor, .github/skills/fleet-auditor and .opencode/skills/fleet-auditor in your project.
What does Fleet Auditor need to run?
Going by SKILL.md and its folder, Fleet Auditor needs Python for the scripts in its folder and the command-line tools its instructions call (python3). Our summary lists: Python 3.
Does Fleet Auditor access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Fleet Auditor safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Fleet Auditor use?
Fleet Auditor has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Fleet Auditor use?
About 1.5k tokens (SKILL.md is roughly 6.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.7k tokens, read only when the agent opens those files.
What are the alternatives to Fleet Auditor?
Skills that share tags, products or a category with Fleet Auditor: Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Copilot Session Failure Analysis (dotnet/maui, 23k stars), Mem0 CLI Memory Commands (mem0ai/mem0, 67k stars) and Create Agent (vectorize-io/hindsight, 48k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Fleet Auditor?
alexgreensh (a GitHub user) maintains it in alexgreensh/token-optimizer, which has 2,534 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 10, 2026.
Source: alexgreensh/token-optimizer on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.