Handoff
nexu-io/open-design
Push the run's accepted artifact to a downstream collaboration surface (cli, other code agents, cloud, desktop) and stamp the artifact manifest with the export target.
Internal token-compression protocol for Cavekit agent artifacts — handoff notes, artifact summaries, context bundles, review notes, status lines.
Apache-2.0Auto-check passed
Install Caveman Internal
$ npx skills add hashgraph-online/awesome-codex-plugins --skill caveman-internal -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins caveman-internal --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/JuliusBrussee/blueprint/skills/caveman-internal .claude/skills/caveman-internal && 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 "caveman-internal" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internal into .claude/skills/caveman-internal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caveman-internal", 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/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internalType 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 hashgraph-online/awesome-codex-plugins --skill caveman-internal -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins caveman-internal --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/JuliusBrussee/blueprint/skills/caveman-internal .agents/skills/caveman-internal && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "caveman-internal" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internal into .agents/skills/caveman-internal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caveman-internal", 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 hashgraph-online/awesome-codex-plugins --skill caveman-internal -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins caveman-internal --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/JuliusBrussee/blueprint/skills/caveman-internal .cursor/skills/caveman-internal && 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 "caveman-internal" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internal into .cursor/skills/caveman-internal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caveman-internal", 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/hashgraph-online/awesome-codex-plugins.git --path plugins/JuliusBrussee/blueprint/skills/caveman-internal--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 hashgraph-online/awesome-codex-plugins --skill caveman-internal -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins caveman-internal --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/JuliusBrussee/blueprint/skills/caveman-internal .gemini/skills/caveman-internal && 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 "caveman-internal" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internal into .gemini/skills/caveman-internal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caveman-internal", 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 hashgraph-online/awesome-codex-plugins caveman-internalInstalls 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 hashgraph-online/awesome-codex-plugins --skill caveman-internal -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/JuliusBrussee/blueprint/skills/caveman-internal .github/skills/caveman-internal && 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 "caveman-internal" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internal into .github/skills/caveman-internal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caveman-internal", 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 hashgraph-online/awesome-codex-plugins --skill caveman-internal -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins caveman-internal --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/JuliusBrussee/blueprint/skills/caveman-internal .opencode/skills/caveman-internal && 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 "caveman-internal" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/JuliusBrussee/blueprint/skills/caveman-internal into .opencode/skills/caveman-internal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "caveman-internal", 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
caveman-internal- GitHub stars
- 1.3k
- Token cost
- ~1.2k tokens
- SKILL.md length
- 501 words
- Files
- 2 (incl. references)
- Skills in repo
- 714
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Internal token-compression protocol for Cavekit agent artifacts — handoff notes, artifact summaries, context bundles, review notes, status lines.
- Works in 3 steps: Regenerate the artifact in full prose… → Append a one-line entry to state.md's… → If the same artifact category fails 3+…
- SKILL.md covers Scope, Intensity levels, Automatic intensity selection and Fallback protocol, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Caveman Internal is an agent skill from hashgraph-online/awesome-codex-plugins. Internal token-compression protocol for Cavekit agent artifacts — handoff notes, artifact summaries, context bundles, review notes, status lines. NOT the user-facing /caveman skill; that one compresses assistant replies to the user. This skill compresses machine-to-machine prose so the next agent in the loop reads fewer tokens. Three intensities (lite / full / ultra) with automatic selection based on budget pressure. Used by task-builder, builder, inspector, verifier, convergence-monitor, and the stop-hook status…
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/budget-thresholds.md`).
The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.
Example prompts
- “/caveman-internal”
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Regenerate the artifact in full prose (no compression).
- Append a one-line entry to state.md's "Caveman fallbacks" section
- If the same artifact category fails 3+ times in one session, clamp that
What it can do on your machine
Read from SKILL.md and the folder at commit 9e7b281. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Caveman Internal loads about 1.2k tokens when it runs, and up to ~1.7k if it reads all its reference files. Until then it costs about 136 tokens; SKILL.md has 501 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 hashgraph-online/awesome-codex-plugins at commit 9e7b281, republished under its Apache-2.0 licence (© hashgraph-online). 501 words, ~1,212 tokens.
Download SKILL.mdSave it as
.claude/skills/caveman-internal/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- caveman-internal
- description
- Internal token-compression protocol for Cavekit agent artifacts — handoff notes, artifact summaries, context bundles, review notes, status lines. NOT the user-facing /caveman skill; that one compresses assistant replies to the user. This skill compresses machine-to-machine prose so the next agent in the loop reads fewer tokens. Three intensities (lite / full / ultra) with automatic selection based on budget pressure. Used by task-builder, builder, inspector, verifier, convergence-monitor, and the stop-hook status block.
Caveman Internal Protocol
Scope
IN-scope (compress)
- Artifact summaries written to
.cavekit/artifacts/ - Context bundles between tasks (
.cavekit/context-bundles/) - Review notes and gap lists (non-user-facing)
state.mdnotes:field andloop-log.mdentries- Status-block body (dashboard injected by the stop hook)
- Inter-agent handoff memos
OUT-of-scope (never compress)
- Source code (any language, any file)
- Git commit messages and PR descriptions
- Kits (specs), build sites, DESIGN.md
- Error messages that a human will act on
- Security warnings and deprecation notices
- Structured findings tables (P0/P1/P2/P3, coverage matrices)
- Regression test names and assertion messages
Compressing out-of-scope content is a bug. If a reader cannot act on a compressed artifact, regenerate it verbose and log a caveman fallback — see "Fallback protocol" below.
Intensity levels
Lite — trim the fat (~20% savings)
Professional tone. Grammar intact. Drop filler, pleasantries, hedging. Keep articles and full sentences.
Rate-limit middleware passes unit tests. Integration failed on 429 header case sensitivity. Fix in progress.
Full — default (~40% savings)
Classic caveman. Drop articles, filler, pleasantries. Fragments fine.
Technical terms stay exact. Pattern: [thing] [action] [reason]. [next].
Rate-limit mw pass unit. Integration fail on 429 header case. Fixing.
Ultra — maximum grunt (~65% savings)
Telegraphic. Abbreviate common terms (DB, auth, config, req, res, fn, impl, mw, mcp). Arrow notation for causality. One-word answers when enough.
mw ok, int fail header case → fix
Automatic intensity selection
Consult the session budget ledger before writing an internal artifact:
| Budget remaining | Intensity |
|---|---|
| > 50 % | lite |
| 20 – 50 % | full |
| < 20 % | ultra |
Override rules:
depth = thoroughtasks clamp to lite regardless of pressure (accuracy matters more than tokens when the stakes are high).phase = inspectingclamps to lite for the gap-analysis output.- Security-sensitive artifacts clamp to lite.
- If the caller sets
caveman_intensityexplicitly in the artifact envelope, use that and skip auto-selection.
See references/budget-thresholds.md for the detailed decision table.
Show full SKILL.md (216 more words)Show less
Fallback protocol
If a downstream reader cannot reconstruct intent from a compressed artifact:
- Regenerate the artifact in full prose (no compression).
- Append a one-line entry to
state.md's "Caveman fallbacks" section:- 2026-04-17T12:34Z T-017 verifier fallback: artifact summary re-expanded - If the same artifact category fails 3+ times in one session, clamp that
category to
litefor the rest of the session and log tostate.md.
Envelope
Every compressed artifact carries a tiny header:
<!-- caveman: intensity=full version=1 -->Readers that see this header know the body is compressed and apply the reverse-expansion grammar (re-add articles, re-expand abbreviations) when rendering for a human.
Examples
| Verbose | Full | Ultra |
|---|---|---|
| "The build completed successfully after three waves." | "Build complete. 3 waves." | "Build ok 3w" |
| "All tests pass, but one test was skipped due to a missing fixture." | "Tests pass. One skipped, missing fixture." | "Tests ok 1 skip fx" |
| "The reviewer flagged two critical issues in the auth middleware." | "Reviewer: 2 P0 in auth mw." | "Rev 2 P0 auth mw" |
Integration with the existing caveman skill
The user-facing caveman skill governs how the assistant speaks to the user
during a session (answers, explanations, replies). This caveman-internal
skill governs how agents write artifacts for each other. Both must be on
or both off for a coherent experience, so caveman_mode = off in config also
disables this skill.
© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in plugins/JuliusBrussee/blueprint/skills/caveman-internal of hashgraph-online/awesome-codex-plugins.
- SKILL.md
- references/budget-thresholds.md
Open the folder on GitHubat commit 9e7b281
Compare with similar skills
Caveman Internal 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 |
|---|---|---|---|---|---|---|
| Caveman Internal this skillhashgraph-online/awesome-codex-plugins | 1.3k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Handoffnexu-io/open-design | 100k | — | ~547 | Automated safety check: Pass | Apache-2.0 | |
| Session Handoff Documentthedotmack/claude-mem | 99k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Compressionthedaviddias/Front-End-Checklist | 74k | — | ~421 | Automated safety check: Pass | MIT | |
| Handoffalirezarezvani/claude-skills | 28k | — | ~2.5k | Automated safety check: Notes | MIT | |
| Handoffalirezarezvani/claude-skills | 28k | — | ~532 | Automated safety check: Pass | MIT |
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thedotmack/claude-mem
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thedaviddias/Front-End-Checklist
A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Enable text-based compression.
Handoff
alirezarezvani/claude-skills
Compact the current conversation into a handoff document for another agent to pick up.
Handoff
alirezarezvani/claude-skills
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Session Handoff
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Questions about Caveman Internal
What does Caveman Internal do?
Internal token-compression protocol for Cavekit agent artifacts — handoff notes, artifact summaries, context bundles, review notes, status lines. Caveman Internal is an agent skill from hashgraph-online/awesome-codex-plugins. Internal token-compression protocol for Cavekit agent artifacts — handoff notes, artifact summaries, context bundles, review notes, status lines.
How do I install Caveman Internal in Claude Code?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill caveman-internal -a claude-code`. Or copy the skill folder (plugins/JuliusBrussee/blueprint/skills/caveman-internal in hashgraph-online/awesome-codex-plugins) into .claude/skills/caveman-internal in your project. Claude Code loads it when a task matches its description.
How do I install Caveman Internal in Codex?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill caveman-internal -a codex`. Or copy the skill folder (plugins/JuliusBrussee/blueprint/skills/caveman-internal in hashgraph-online/awesome-codex-plugins) into .agents/skills/caveman-internal in your project. Codex loads it when a task matches its description.
Can I use Caveman Internal 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 hashgraph-online/awesome-codex-plugins --skill caveman-internal -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/caveman-internal, .gemini/skills/caveman-internal, .github/skills/caveman-internal and .opencode/skills/caveman-internal in your project.
What does Caveman Internal need to run?
SKILL.md names no scripts, command-line tools or credentials: Caveman Internal is instructions for the agent only.
Does Caveman Internal 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 Caveman Internal 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 Caveman Internal use?
Caveman Internal is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Caveman Internal use?
About 1.2k tokens (SKILL.md is roughly 4.8k 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 461 tokens, read only when the agent opens those files.
What are the alternatives to Caveman Internal?
Skills that share tags, products or a category with Caveman Internal: Handoff (nexu-io/open-design, 100k stars), Session Handoff Document (thedotmack/claude-mem, 99k stars), Compression (thedaviddias/Front-End-Checklist, 74k stars) and Handoff (alirezarezvani/claude-skills, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Caveman Internal?
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,255 GitHub stars. The repository holds 714 skills in this directory. The repository was last updated on October 9, 2026.
Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.