Vibe
pcx-wave/vibe-skill
Delegate a coding task to Mistral Vibe and supervise the result via git diff.
Build an optimal context pack for the user's task — ranked file list with offset/limit suggestions, based on git state, mentioned paths, and historical patterns
Install Cco Pack
$ npx skills add egorfedorov/claude-context-optimizer --skill cco-pack -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-pack --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/egorfedorov/claude-context-optimizer.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cco-pack .claude/skills/cco-pack && 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 "cco-pack" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-pack into .claude/skills/cco-pack/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-pack", 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/egorfedorov/claude-context-optimizer/tree/main/skills/cco-packType 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 egorfedorov/claude-context-optimizer --skill cco-pack -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-pack --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/egorfedorov/claude-context-optimizer.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/cco-pack .agents/skills/cco-pack && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cco-pack" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-pack into .agents/skills/cco-pack/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-pack", 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 egorfedorov/claude-context-optimizer --skill cco-pack -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-pack --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/egorfedorov/claude-context-optimizer.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/cco-pack .cursor/skills/cco-pack && 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 "cco-pack" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-pack into .cursor/skills/cco-pack/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-pack", 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/egorfedorov/claude-context-optimizer.git --path skills/cco-pack--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 egorfedorov/claude-context-optimizer --skill cco-pack -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-pack --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/egorfedorov/claude-context-optimizer.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/cco-pack .gemini/skills/cco-pack && 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 "cco-pack" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-pack into .gemini/skills/cco-pack/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-pack", 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 egorfedorov/claude-context-optimizer cco-packInstalls 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 egorfedorov/claude-context-optimizer --skill cco-pack -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/egorfedorov/claude-context-optimizer.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/cco-pack .github/skills/cco-pack && 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 "cco-pack" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-pack into .github/skills/cco-pack/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-pack", 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 egorfedorov/claude-context-optimizer --skill cco-pack -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-pack --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/egorfedorov/claude-context-optimizer.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/cco-pack .opencode/skills/cco-pack && 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 "cco-pack" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-pack into .opencode/skills/cco-pack/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-pack", 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
cco-pack- GitHub stars
- 114
- Token cost
- ~448 tokens
- SKILL.md length
- 205 words
- Files
- 1
- Skills in repo
- 13
- Repo updated
- First seen
- Licence
- MIT
At a glance
Build an optimal context pack for the user's task — ranked file list with offset/limit suggestions, based on git state, mentioned paths, and historical patterns
- Works in 4 steps: Mentioned in prompt — explicit file… → Modified in git working tree → 85 → Historically useful in this project… → …
- Tasks that involve LLM cost and token optimization
- SKILL.md covers How to use, How it ranks files, Token budget awareness and Presentation
- Calls node
What it does
Cco Pack is an agent skill from egorfedorov/claude-context-optimizer. Build an optimal context pack for the user's task — ranked file list with offset/limit suggestions, based on git state, mentioned paths, and historical patterns
Its SKILL.md is about 450 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 AI & LLM Engineering, covering LLM cost and token optimization. It works with Git. The repository describes itself as: Claude Code plugin that tracks token usage, identifies wasted context, and saves 30-50% on API costs. Heatmaps, ROI reports, budget alerts, efficiency scores, git-aware… The licence is MIT.
When your agent uses it
- Tasks that involve LLM cost and token optimization
Example prompts
- “/cco-pack”
Requirements
- Pre-approved tools (allowed-tools): Bash(node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.js:*), Read
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Mentioned in prompt — explicit file paths or recognisable names → relevance 100
- Modified in git working tree → 85
- Historically useful in this project (high confidence, edited often) → up to 70
- Keyword match against the task → up to 70
What it can do on your machine
Read from SKILL.md and the folder at commit f6f20ee. 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(node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.js:*)Read
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
node
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
Cco Pack loads about 448 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 205 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); files beside SKILL.md are not scanned.
SKILL.md
The full file from egorfedorov/claude-context-optimizer at commit f6f20ee, republished under its MIT licence (© egorfedorov). 205 words, ~448 tokens.
Download SKILL.mdSave it as
.claude/skills/cco-pack/SKILL.md (or your agent's skills folder).- name
- cco-pack
- description
- Build an optimal context pack for the user's task — ranked file list with offset/limit suggestions, based on git state, mentioned paths, and historical patterns
- allowed-tools
- Bash(node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.js:*), Read
- license
- MIT
Smart Context Pack
When the user runs /cco-pack or asks "what files do I need for X", build a curated, token-budget-aware list of files to load instead of guessing or reading the whole repo.
How to use
node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.js "the task description"Or for the current git state without a description:
node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.jsOr to feed it back into automation as JSON:
node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.js --json "..."How it ranks files
Priority order:
- Mentioned in prompt — explicit file paths or recognisable names → relevance 100
- Modified in git working tree → 85
- Historically useful in this project (high confidence, edited often) → up to 70
- Keyword match against the task → up to 70
For each file the pack also suggests offset / limit — pointing at the structurally relevant section based on file landmarks (function/class declarations near task keywords).
Token budget awareness
Pack stops adding files once it would exceed 25% of the user's effective context budget. The budget itself respects the configured model (e.g. the full 1M window for opus-5.5 — 1M is standard on Opus, no premium tier).
Presentation
After running, present the list to the user and offer to:
- Read the top N files with the suggested offset/limit
- Save the set as a template (
/cco-templates create <name>) - Drop low-relevance items if they want a tighter pack
© egorfedorov, 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 skills/cco-pack of egorfedorov/claude-context-optimizer.
Open the folder on GitHubat commit f6f20ee
Compare with similar skills
Cco Pack 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 |
|---|---|---|---|---|---|---|
| Cco Pack this skillegorfedorov/claude-context-optimizer | 114 | — | ~448 | Automated safety check: Pass | MIT | |
| Vibepcx-wave/vibe-skill | 120 | — | ~7.2k | Automated safety check: Notes | MIT | |
| Levyra Context EfficiencyLUC4N3X/Levyra-deepsound | 533 | — | ~1.3k | Automated safety check: Notes | GPL-3.0 | |
| Context Compressionguanyang/open-agent-hub | 977 | 2 repos | ~4.6k | Automated safety check: Pass | MIT | |
| Bounty Hunter1sadjlk/bounty-hunter-skill | 282 | 1 repos | ~761 | Automated safety check: Pass | MIT | |
| Skill Shortenerluongnv89/asm | 954 | — | ~3.8k | Automated safety check: Notes | MIT |
Similar skills
Levyra Context Efficiency
LUC4N3X/Levyra-deepsound
A skill your agent uses for genuinely high-volume Levyra work such as builds, tests, lint, logs, broad searches, dependency output, Git/GitHub or CodeRabbit inspection, CI diagnostics, agent setup…
Context Compression
guanyang/open-agent-hub
This skill should be used when long-running agent sessions need context compression, structured summarization, compaction, token-per-task optimization, or durable handoff summaries that preserve…
Bounty Hunter
1sadjlk/bounty-hunter-skill
A professional AI bounty hunter persona named Atlas. An agent skill from 1sadjlk/bounty-hunter-skill.
Skill Shortener
luongnv89/asm
Refactor a too-long SKILL.md by progressive disclosure: measure token cost, classify every section KEEP/CUT/MOVE, shorten the body into references/ and scripts/, verify nothing was lost.
Codebase Cost Estimate
jbarbier/claude-code-cost-estimate
Estimates what a codebase would cost a traditional human team to rebuild, with P10, P50 and P90 ranges cross-checked by COCOMO II, Function Points and LOCOMO.
More from egorfedorov/claude-context-optimizer
All 13 skills in this repoSmart Loader
egorfedorov/claude-context-optimizer
Automatically suggests optimal files to preload based on the user's task description and historical context patterns.
Cco
egorfedorov/claude-context-optimizer
Context Control Center — one screen for budget, $ spent, tokens saved, waste, last prompt grade, the active task, and ready-to-run optimization actions
Cco Budget
egorfedorov/claude-context-optimizer
Configure token budget limits, auto-compact settings, and view current budget status (model-aware — Claude 5 lineup, Opus 5.5 default fallback, full 1M context at standard price)
Cco Config
egorfedorov/claude-context-optimizer
View and tune CCO's behavior thresholds — re-read warnings, cache staleness, prompt-coach length bands, and the /cco-pack budget cap
Cco Patterns
egorfedorov/claude-context-optimizer
Share learned file patterns across a team — export an anonymized digest of what's usually waste/useful/co-edited, and import a teammate's so a fresh clone benefits day one
Cco Shield
egorfedorov/claude-context-optimizer
Show ContextShield status and waste protection stats; suggest or apply .contextignore rules from historical waste
Related
Works with
Categories
Questions about Cco Pack
What does Cco Pack do?
Build an optimal context pack for the user's task — ranked file list with offset/limit suggestions, based on git state, mentioned paths, and historical patterns. Cco Pack is an agent skill from egorfedorov/claude-context-optimizer.
When should I use Cco Pack?
Cco Pack fits situations like: tasks that involve LLM cost and token optimization.
How do I install Cco Pack in Claude Code?
Run `npx skills add egorfedorov/claude-context-optimizer --skill cco-pack -a claude-code`. Or copy the skill folder (skills/cco-pack in egorfedorov/claude-context-optimizer) into .claude/skills/cco-pack in your project. Claude Code loads it when a task matches its description.
How do I install Cco Pack in Codex?
Run `npx skills add egorfedorov/claude-context-optimizer --skill cco-pack -a codex`. Or copy the skill folder (skills/cco-pack in egorfedorov/claude-context-optimizer) into .agents/skills/cco-pack in your project. Codex loads it when a task matches its description.
Can I use Cco Pack 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 egorfedorov/claude-context-optimizer --skill cco-pack -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cco-pack, .gemini/skills/cco-pack, .github/skills/cco-pack and .opencode/skills/cco-pack in your project.
What does Cco Pack need to run?
Going by SKILL.md and its folder, Cco Pack needs the command-line tools its instructions call (node). Its frontmatter pre-approves these tools: Bash(node ${CLAUDE_PLUGIN_ROOT}/src/smart-pack.js:*), Read.
Does Cco Pack 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 Cco Pack 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 Cco Pack use?
Cco Pack is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Cco Pack use?
About 448 tokens (SKILL.md is roughly 1.8k 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 Cco Pack?
Skills that share tags, products or a category with Cco Pack: Vibe (pcx-wave/vibe-skill, 120 stars), Levyra Context Efficiency (LUC4N3X/Levyra-deepsound, 533 stars), Context Compression (guanyang/open-agent-hub, 977 stars) and Bounty Hunter (1sadjlk/bounty-hunter-skill, 282 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cco Pack?
egorfedorov (a GitHub user) maintains it in egorfedorov/claude-context-optimizer, which has 114 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on September 30, 2026.
Source: egorfedorov/claude-context-optimizer on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.