Rust Path Types
openinterpreter/openinterpreter
Rules for choosing Rust types for filesystem paths in new Codex code, covering protocol types, internal use and model tool arguments.
Manage context templates for common task types. An agent skill from egorfedorov/claude-context-optimizer.
MITAuto-check passed
Install Cco Templates
$ npx skills add egorfedorov/claude-context-optimizer --skill cco-templates -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-templates --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-templates .claude/skills/cco-templates && 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-templates" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-templates into .claude/skills/cco-templates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-templates", 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-templatesType 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-templates -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-templates --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-templates .agents/skills/cco-templates && 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-templates" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-templates into .agents/skills/cco-templates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-templates", 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-templates -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-templates --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-templates .cursor/skills/cco-templates && 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-templates" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-templates into .cursor/skills/cco-templates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-templates", 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-templates--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-templates -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install egorfedorov/claude-context-optimizer cco-templates --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-templates .gemini/skills/cco-templates && 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-templates" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-templates into .gemini/skills/cco-templates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-templates", 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-templatesInstalls 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-templates -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-templates .github/skills/cco-templates && 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-templates" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-templates into .github/skills/cco-templates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-templates", 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-templates -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-templates --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-templates .opencode/skills/cco-templates && 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-templates" agent skill from https://github.com/egorfedorov/claude-context-optimizer/tree/main/skills/cco-templates into .opencode/skills/cco-templates/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cco-templates", 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-templates- GitHub stars
- 114
- Token cost
- ~410 tokens
- SKILL.md length
- 144 words
- Files
- 1
- Skills in repo
- 13
- Repo updated
- First seen
- Licence
- MIT
At a glance
Manage context templates for common task types. An agent skill from egorfedorov/claude-context-optimizer.
- Works in 2 steps: What type of task is this for? (e.g.,… → Which files/patterns should be pre-loaded?
- SKILL.md covers list (or no arguments), create, apply and delete
- Calls node
What it does
Cco Templates is an agent skill from egorfedorov/claude-context-optimizer. Manage context templates for common task types
Its SKILL.md is about 410 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
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.
Example prompts
- “/cco-templates”
Requirements
- Pre-approved tools (allowed-tools): Bash(node ${CLAUDE_PLUGIN_ROOT}/src/tracker.js:*), Read, Glob
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- What type of task is this for? (e.g., "bug-fix", "new-feature", "refactor", "review")
- Which files/patterns should be pre-loaded?
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/tracker.js:*)ReadGlob
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 Templates loads about 410 tokens when it runs. Until then it costs about 15 tokens; SKILL.md has 144 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). 144 words, ~410 tokens.
Download SKILL.mdSave it as
.claude/skills/cco-templates/SKILL.md (or your agent's skills folder).- name
- cco-templates
- description
- Manage context templates for common task types
- allowed-tools
- Bash(node ${CLAUDE_PLUGIN_ROOT}/src/tracker.js:*), Read, Glob
- license
- MIT
- argument-hint
- [list | create <name> | apply <name> | delete <name>]
Context Templates
Context templates are pre-defined sets of files to read for common task types, saving time and tokens by loading only what's needed.
Templates are stored in ~/.claude-context-optimizer/templates/.
Parse $ARGUMENTS:
list (or no arguments)
Show all available templates: Glob ~/.claude-context-optimizer/templates/*.json.
For each template, show its name, description, and file list.
create <name>
Help the user create a new template. Ask them:
- What type of task is this for? (e.g., "bug-fix", "new-feature", "refactor", "review")
- Which files/patterns should be pre-loaded?
Also suggest files based on historical tracking data:
node ${CLAUDE_PLUGIN_ROOT}/src/tracker.js suggestSave (the user approves the write) the template as ~/.claude-context-optimizer/templates/<name>.json with format:
{
"name": "template-name",
"description": "What this template is for",
"files": ["relative/path/to/file1", "relative/path/to/file2"],
"patterns": ["**/*.config.*", "src/core/**"],
"preCommands": ["git status", "git log --oneline -5"]
}apply <name>
Read the template and execute:
- Run any
preCommands - Read the listed files
- Search for the listed patterns using Glob
This gives Claude exactly the right context for the task type.
delete <name>
Delete the template file and confirm.
© 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-templates of egorfedorov/claude-context-optimizer.
Open the folder on GitHubat commit f6f20ee
Compare with similar skills
Cco Templates 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 Templates this skillegorfedorov/claude-context-optimizer | 114 | — | ~410 | Automated safety check: Pass | MIT | |
| Rust Path Typesopeninterpreter/openinterpreter | 69k | 2 repos | ~605 | Automated safety check: Pass | Apache-2.0 | |
| Python Type Safetywshobson/agents | 40k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Pyrefly Type Coveragepytorch/pytorch | 104k | — | ~3k | Automated safety check: Pass | Custom licence | |
| Typescript Advanced Typesrolling-scopes/rsschool-app | 10k | 25 repos | ~4.2k | Automated safety check: Pass | MPL-2.0 | |
| API Typessupabase/supabase | 111k | — | ~557 | Automated safety check: Pass | Apache-2.0 |
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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
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Show ContextShield status and waste protection stats; suggest or apply .contextignore rules from historical waste
Questions about Cco Templates
What does Cco Templates do?
Manage context templates for common task types. An agent skill from egorfedorov/claude-context-optimizer. Cco Templates is an agent skill from egorfedorov/claude-context-optimizer.
How do I install Cco Templates in Claude Code?
Run `npx skills add egorfedorov/claude-context-optimizer --skill cco-templates -a claude-code`. Or copy the skill folder (skills/cco-templates in egorfedorov/claude-context-optimizer) into .claude/skills/cco-templates in your project. Claude Code loads it when a task matches its description.
How do I install Cco Templates in Codex?
Run `npx skills add egorfedorov/claude-context-optimizer --skill cco-templates -a codex`. Or copy the skill folder (skills/cco-templates in egorfedorov/claude-context-optimizer) into .agents/skills/cco-templates in your project. Codex loads it when a task matches its description.
Can I use Cco Templates 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-templates -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-templates, .gemini/skills/cco-templates, .github/skills/cco-templates and .opencode/skills/cco-templates in your project.
What does Cco Templates need to run?
Going by SKILL.md and its folder, Cco Templates needs the command-line tools its instructions call (node). Its frontmatter pre-approves these tools: Bash(node ${CLAUDE_PLUGIN_ROOT}/src/tracker.js:*), Read, Glob.
Does Cco Templates 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 Templates 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 Templates use?
Cco Templates 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 Templates use?
About 410 tokens (SKILL.md is roughly 1.6k 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 Templates?
Skills that share tags, products or a category with Cco Templates: Rust Path Types (openinterpreter/openinterpreter, 69k stars), Python Type Safety (wshobson/agents, 40k stars), Pyrefly Type Coverage (pytorch/pytorch, 104k stars) and Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cco Templates?
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.