Agent skill

Diagnose

by Ruya-AI in Ruya-AI/cozempic

Analyze Claude Code session bloat — shows token count, context usage %, and bloat breakdown.

MITAuto-check passedAgent Workflows

Install Diagnose

skills CLI
$ npx skills add Ruya-AI/cozempic --skill diagnose -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Ruya-AI/cozempic diagnose --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Ruya-AI/cozempic.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugin/skills/diagnose .claude/skills/diagnose && rm -rf skills-src

Use ~/.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/

Facts

Skill name
diagnose
GitHub stars
425
Token cost
~283 tokens
SKILL.md length
108 words
Files
1
Skills in repo
5
Repo updated
First seen
Licence
MIT

At a glance

Analyze Claude Code session bloat — shows token count, context usage %, and bloat breakdown.

  • The user asks about session size
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • You notice the context window is getting full

What it does

Diagnose is an agent skill from Ruya-AI/cozempic. Analyze Claude Code session bloat — shows token count, context usage %, and bloat breakdown. Use when the user asks about session size, context usage, or when you notice the context window is getting full.

Its SKILL.md is about 280 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering Context engineering. The repository describes itself as: Context cleaning for Claude Code — prune bloated sessions, protect Agent Teams from context loss, auto-guard with tiered pruning. The licence is MIT.

When your agent uses it

  • The user asks about session size
  • You notice the context window is getting full

Example prompts

  • “/diagnose”

Requirements

  • Pre-approved tools (allowed-tools): Bash(cozempic *)

What it can do on your machine

Read from SKILL.md and the folder at commit fd41e95. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Bash(cozempic *)

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    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

Diagnose loads about 283 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 108 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~54
When it runs · the whole SKILL.md, loaded when a task matches
~283

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); files beside SKILL.md are not scanned.

SKILL.md

The full file from Ruya-AI/cozempic at commit fd41e95, republished under its MIT licence (© Ruya-AI). 108 words, ~283 tokens.

Download SKILL.mdSave it as .claude/skills/diagnose/SKILL.md (or your agent's skills folder).
name
diagnose
description
Analyze Claude Code session bloat — shows token count, context usage %, and bloat breakdown. Use when the user asks about session size, context usage, or when you notice the context window is getting full.
allowed-tools
Bash(cozempic *)

Run a diagnosis on the current session:

bash
cozempic current --diagnose

The output includes:

  • Weight: total session size in bytes and message count
  • Tokens: exact token count (from usage data) or heuristic estimate
  • Context bar: visual bar showing % of the detected context window (200K or 1M)
  • Vital signs: progress ticks, file history snapshots, system reminders, thinking content, signatures, tool results
  • Message type breakdown: bytes per message type
  • Top 10 largest messages: biggest bloat contributors
  • Estimated savings by prescription: what gentle/standard/aggressive would save

Always surface the token count and context % to the user. If context is above 60%, suggest running /cozempic:treat with a prescription recommendation:

  • Under 5MB: gentle
  • 5-20MB: standard
  • Over 20MB: aggressive

© Ruya-AI, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugin/skills/diagnose of Ruya-AI/cozempic.

Open the folder on GitHubat commit fd41e95

Compare with similar skills

Diagnose 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.

Diagnose compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Diagnose this skillRuya-AI/cozempic425—~283Automated safety check: PassMIT
Context Mode Output Sandboxmksglu/context-mode26k—~4.1kAutomated safety check: PassCustom licence
Memori Long-Term MemoryMemoriLabs/Memori17k—~2kAutomated safety check: NotesCustom licence
Picoclaw Skill Creatorsipeed/picoclaw30k—~4.4kAutomated safety check: PassMIT
ccc Semantic Code Searchcocoindex-io/cocoindex-code2.8k—~938Automated safety check: PassApache-2.0
Context Mode for Antigravity CLImksglu/context-mode26k—~850Automated safety check: PassCustom licence

Similar skills

  • Context Mode Output Sandbox

    mksglu/context-mode

    Routes large command, file, API and browser output through context-mode tools so only the needed result enters the agent's context, instead of dumping it via Bash.

    26k GitHub stars~4.1k tokensUpdated today
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  • Memori Long-Term Memory

    MemoriLabs/Memori

    Connects Claude Code to Memori Cloud for long-term memory, recalling stored context before substantive replies and saving new context afterward.

    17k GitHub stars~2k tokensUpdated 7 days ago
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  • Picoclaw Skill Creator

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    Guidance for creating, updating and reviewing Picoclaw skills, from the SKILL.md structure to organizing bundled scripts, references and assets.

    30k GitHub stars~4.4k tokensUpdated yesterday
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  • ccc Semantic Code Search

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  • Routing rules for using context-mode MCP tools in Antigravity CLI: sandboxed code runs, file analysis, indexed search and web fetches that keep large output out of the conversation.

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  • Token Optimizer

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More from Ruya-AI/cozempic

  • Cozempic Session Guard

    Ruya-AI/cozempic

    Starts a background daemon that watches a Claude Code session's size and prunes it before auto-compaction can discard context or agent-team state.

    425 GitHub stars~434 tokensUpdated 3 mo ago
    Auto-check passed
  • Cozempic Session Pruning

    Ruya-AI/cozempic

    Prunes a bloated Claude Code session with the cozempic CLI using a gentle, standard or aggressive prescription, after a dry run and your confirmation.

    425 GitHub stars~546 tokensUpdated 3 mo ago
    Auto-check passed
  • Cozempic Doctor

    Ruya-AI/cozempic

    Runs cozempic doctor to check Claude Code configuration and sessions for known problems such as trust-dialog hangs, corrupted tool blocks and zombie teams.

    425 GitHub stars~303 tokensUpdated 3 mo ago
    Auto-check passed
  • Session Reload and Prune

    Ruya-AI/cozempic

    Prunes a bloated Claude Code session with the cozempic CLI, shows the token savings, and spawns a watcher that reopens the pruned session in a new terminal window.

    425 GitHub stars~260 tokensUpdated 3 mo ago
    Auto-check passed

Categories

Questions about Diagnose

What does Diagnose do?

Analyze Claude Code session bloat — shows token count, context usage %, and bloat breakdown. Diagnose is an agent skill from Ruya-AI/cozempic. Analyze Claude Code session bloat — shows token count, context usage %, and bloat breakdown.

When should I use Diagnose?

Diagnose fits situations like: the user asks about session size; you notice the context window is getting full.

How do I install Diagnose in Claude Code?

Run `npx skills add Ruya-AI/cozempic --skill diagnose -a claude-code`. Or copy the skill folder (plugin/skills/diagnose in Ruya-AI/cozempic) into .claude/skills/diagnose in your project. Claude Code loads it when a task matches its description.

How do I install Diagnose in Codex?

Run `npx skills add Ruya-AI/cozempic --skill diagnose -a codex`. Or copy the skill folder (plugin/skills/diagnose in Ruya-AI/cozempic) into .agents/skills/diagnose in your project. Codex loads it when a task matches its description.

Can I use Diagnose 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 Ruya-AI/cozempic --skill diagnose -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/diagnose, .gemini/skills/diagnose, .github/skills/diagnose and .opencode/skills/diagnose in your project.

What does Diagnose need to run?

SKILL.md names no scripts, command-line tools or credentials: Diagnose is instructions for the agent only. Its frontmatter pre-approves these tools: Bash(cozempic *).

Does Diagnose 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 Diagnose 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. Review the folder before installing.

What licence does Diagnose use?

Diagnose is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Diagnose use?

About 283 tokens (SKILL.md is roughly 1.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Diagnose?

Skills that share tags, products or a category with Diagnose: Context Mode Output Sandbox (mksglu/context-mode, 26k stars), Memori Long-Term Memory (MemoriLabs/Memori, 17k stars), Picoclaw Skill Creator (sipeed/picoclaw, 30k stars) and ccc Semantic Code Search (cocoindex-io/cocoindex-code, 2.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Diagnose?

Ruya-AI (a GitHub organization) maintains it in Ruya-AI/cozempic, which has 425 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on July 3, 2026.

Source: Ruya-AI/cozempic on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.