Update V8 Version
openinterpreter/openinterpreter
Bumps the pinned v8 and rusty_v8 versions in Codex, validates the release-candidate path with the v8-canary check, and traces failures to upstream build changes.
Guides Rust binary size reduction for ccusage. An agent skill from ccusage/ccusage.
Custom licenceAuto-check passed
Install Rust Binary Size
$ npx skills add ccusage/ccusage --skill rust-binary-size -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ccusage/ccusage rust-binary-size --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/ccusage/ccusage.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/rust-binary-size .claude/skills/rust-binary-size && 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 "rust-binary-size" agent skill from https://github.com/ccusage/ccusage/tree/main/.agents/skills/rust-binary-size into .claude/skills/rust-binary-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust-binary-size", 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/ccusage/ccusage/tree/main/.agents/skills/rust-binary-sizeType 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 ccusage/ccusage --skill rust-binary-size -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ccusage/ccusage rust-binary-size --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ccusage/ccusage.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/rust-binary-size .agents/skills/rust-binary-size && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "rust-binary-size" agent skill from https://github.com/ccusage/ccusage/tree/main/.agents/skills/rust-binary-size into .agents/skills/rust-binary-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust-binary-size", 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 ccusage/ccusage --skill rust-binary-size -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ccusage/ccusage rust-binary-size --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ccusage/ccusage.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/rust-binary-size .cursor/skills/rust-binary-size && 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 "rust-binary-size" agent skill from https://github.com/ccusage/ccusage/tree/main/.agents/skills/rust-binary-size into .cursor/skills/rust-binary-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust-binary-size", 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/ccusage/ccusage.git --path .agents/skills/rust-binary-size--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 ccusage/ccusage --skill rust-binary-size -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ccusage/ccusage rust-binary-size --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ccusage/ccusage.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/rust-binary-size .gemini/skills/rust-binary-size && 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 "rust-binary-size" agent skill from https://github.com/ccusage/ccusage/tree/main/.agents/skills/rust-binary-size into .gemini/skills/rust-binary-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust-binary-size", 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 ccusage/ccusage rust-binary-sizeInstalls 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 ccusage/ccusage --skill rust-binary-size -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ccusage/ccusage.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/rust-binary-size .github/skills/rust-binary-size && 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 "rust-binary-size" agent skill from https://github.com/ccusage/ccusage/tree/main/.agents/skills/rust-binary-size into .github/skills/rust-binary-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust-binary-size", 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 ccusage/ccusage --skill rust-binary-size -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ccusage/ccusage rust-binary-size --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ccusage/ccusage.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/rust-binary-size .opencode/skills/rust-binary-size && 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 "rust-binary-size" agent skill from https://github.com/ccusage/ccusage/tree/main/.agents/skills/rust-binary-size into .opencode/skills/rust-binary-size/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rust-binary-size", 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
rust-binary-size- GitHub stars
- 19k
- Token cost
- ~591 tokens
- SKILL.md length
- 245 words
- Files
- 1
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Guides Rust binary size reduction for ccusage. An agent skill from ccusage/ccusage.
- Changing the rust/Cargo.toml release profile
- SKILL.md covers Baseline, Investigation, Change Ordering and Validation
- Calls cargo
- Dependency features
What it does
Rust Binary Size is an agent skill from ccusage/ccusage. Guides Rust binary size reduction for ccusage. Use when changing the rust/Cargo.toml release profile, dependency features, native packaging size, or investigating executable bloat with cargo bloat.
Its SKILL.md is about 590 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Rust.
When your agent uses it
- Changing the rust/Cargo.toml release profile
- Dependency features
- Native packaging size
- Investigating executable bloat with cargo bloat
Example prompts
- “Use the rust-binary-size skill to guide Rust binary size reduction for ccusage. An agent skill from ccusage/ccusage”
- “/rust-binary-size”
What it can do on your machine
Read from SKILL.md and the folder at commit d2fd844. 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
Shell commands in SKILL.md call:
cargo
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
github.com
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
Rust Binary Size loads about 591 tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 245 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 245 words (~591 tokens).
- name
- rust-binary-size
- paths
- rust/Cargo.toml, rust/**/*.rs, rust/**/*.toml, apps/ccusage/scripts/**
- globs
- rust/**/*.rs,rust/**/*.toml,apps/ccusage/scripts/**
Files
Just SKILL.md in .agents/skills/rust-binary-size of ccusage/ccusage.
Open the folder on GitHubat commit d2fd844
Compare with similar skills
Rust Binary Size 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 |
|---|---|---|---|---|---|---|
| Rust Binary Size this skillccusage/ccusage | 19k | — | ~591 | Automated safety check: Pass | Custom licence | |
| Update V8 Versionopeninterpreter/openinterpreter | 69k | 2 repos | ~845 | Automated safety check: Pass | Apache-2.0 | |
| Firecrawl Page Scrape Integrationfirecrawl/firecrawl | 189k | 1 repos | ~944 | Automated safety check: Pass | ISC | |
| Migrate Core Code to Submodulestinyhumansai/openhuman | 41k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 | |
| Rust TDD Workflowrtk-ai/rtk | 83k | — | ~753 | Automated safety check: Notes | Apache-2.0 | |
| Rust Best Practicesfarm-fe/farm | 5.6k | 3 repos | ~1.1k | Automated safety check: Pass | MIT |
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Plans and carries out moving non-host-specific code and its tests from the OpenHuman core into vendored tiny submodule libraries, then releases the submodule and re-pins the host.
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rtk-ai/rtk
Enforces red-green-refactor for Rust work, with idiomatic test patterns, a naming convention and a pre-commit gate of cargo fmt, clippy and test.
Rust Best Practices
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Guide for writing idiomatic Rust code based on Apollo GraphQL's best practices handbook.
OpenLogi macOS Permissions Triage
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Decides whether an OpenLogi device problem on macOS is a privacy-permission (TCC) problem, using agent log lines, and says which identity needs which grant.
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Related
Works with
Questions about Rust Binary Size
What does Rust Binary Size do?
Guides Rust binary size reduction for ccusage. An agent skill from ccusage/ccusage. Rust Binary Size is an agent skill from ccusage/ccusage. Guides Rust binary size reduction for ccusage.
When should I use Rust Binary Size?
Rust Binary Size fits situations like: changing the rust/Cargo.toml release profile; dependency features; native packaging size; investigating executable bloat with cargo bloat.
How do I install Rust Binary Size in Claude Code?
Run `npx skills add ccusage/ccusage --skill rust-binary-size -a claude-code`. Or copy the skill folder (.agents/skills/rust-binary-size in ccusage/ccusage) into .claude/skills/rust-binary-size in your project. Claude Code loads it when a task matches its description.
How do I install Rust Binary Size in Codex?
Run `npx skills add ccusage/ccusage --skill rust-binary-size -a codex`. Or copy the skill folder (.agents/skills/rust-binary-size in ccusage/ccusage) into .agents/skills/rust-binary-size in your project. Codex loads it when a task matches its description.
Can I use Rust Binary Size 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 ccusage/ccusage --skill rust-binary-size -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rust-binary-size, .gemini/skills/rust-binary-size, .github/skills/rust-binary-size and .opencode/skills/rust-binary-size in your project.
What does Rust Binary Size need to run?
Going by SKILL.md and its folder, Rust Binary Size needs the command-line tools its instructions call (cargo).
Does Rust Binary Size access the network?
SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.
Is Rust Binary Size 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 Rust Binary Size use?
Rust Binary Size 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 Rust Binary Size use?
About 591 tokens (SKILL.md is roughly 2.4k 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 Rust Binary Size?
Skills that share tags, products or a category with Rust Binary Size: Update V8 Version (openinterpreter/openinterpreter, 69k stars), Firecrawl Page Scrape Integration (firecrawl/firecrawl, 189k stars), Migrate Core Code to Submodules (tinyhumansai/openhuman, 41k stars) and Rust TDD Workflow (rtk-ai/rtk, 83k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Rust Binary Size?
ccusage (a GitHub organization) maintains it in ccusage/ccusage, which has 18,901 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 7, 2026.
Source: ccusage/ccusage on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.