cavecrew
When to delegate to `cavecrew-investigator` (locate code), `cavecrew-builder` (1-2 file edit) or `cavecrew-reviewer` (diff review) instead of working inline…
Skill by JuliusBrussee
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/juliusbrussee-cavecrew
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: writing, agent-orchestration
Reviews
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Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/cavecrew
What's inside
- Skill name
cavecrew- Description
- When to delegate to `cavecrew-investigator` (locate code), `cavecrew-builder` (1-2 file edit) or `cavecrew-reviewer` (diff review) instead of working inline or using `Explore`. Their output is compressed, so main context lasts longer.
- License
- Apache-2.0
- Instructions
- 71 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
Cavecrew = three subagent presets that answer in ultracave voice (tool runs: one status line in, one out; nothing between routine calls). Same job as Anthropic defaults (`Explore`, edit-style agents, reviewer); difference is the tool-result they return is compressed, so main context shrinks per delegation. ## When to use cavecrew vs alternatives | Task | Use | |---|---| | "Where is X defined / what calls Y / list uses of Z" | `cavecrew-investigator` | | Same but you also want suggestions/architecture commentary | `Explore` (vanilla) | | Surgical edit, ≤2 files, scope obvious | `cavecrew-builder` | | New feature / 3+ files / cross-cutting refactor | Main thread, or `feature-dev:code-architect` if installed | | Review diff, branch, or file for bugs | `cavecrew-reviewer` | | Deep code review with rationale + alternatives | `Code Reviewer` (vanilla) if installed, else main thread | | One-line answer you already know | Main thread, no subagent | Rule of thumb: **if you'd want the subagent's output in 1/3 the tokens, pick cavecrew. If you'd want prose, pick vanilla.** ## Why this exists (the real win) Subagent tool results get injected into main context verbatim. A vanilla `Explore` that returns 2k tokens of prose costs 2k tokens of main-context budget every time. The same finding from `cavecrew-investigator` comes back as a compressed `path:line` table instead. Across 20 delegations in one session that's the difference between context exhaustion and finishing the task. ## Output contracts What main thread can rely on per agent: **`cavecrew-investigator`** ``` <Header>: - path:line — `symbol` — short note totals: <counts>. ``` Or `No match.` Always file-path-first, line-number-attached, backticked symbols. Safe to grep with `path:\d+`. **`cavecrew-builder`** ``` <path:line-range> — <change ≤10 words>. verified: <re-read OK | mismatch @ path:line>. ``` Or one of: `too-big.` / `needs-confirm.` / `ambiguous.` / `regressed.` (terminal first token). **`cavecrew-reviewer`** ``` path:line: <emoji> <severity>: <problem>. <fix>. totals: N🔴 N🟡 N🔵 N❓ ``` Or `No issues.` Findings sorted file → line ascending. ## Chaining patterns **Locate → fix → verify** (most common): 1. `cavecrew-investigator` returns site list. 2. Main thread picks 1-2 sites, hands paths to `cavecrew-builder`. 3. `cavecrew-reviewer` audits the diff. **Parallel scout** (when investigation is broad): Spawn 2-3 `cavecrew-investigator` calls in one message (different angles: defs vs callers vs tests). Aggregate in main thread. **Single-shot edit** (when site is already known): Skip investigator. Hand exact path:line to `cavecrew-builder` directly. ## What NOT to do - Don't use `cavecrew-builder` when you don't already know the file. Spawn investigator first or main thread will eat tokens passing context. - Don't chain `cavecrew-investigator → cavecrew-builder` for a 5-file refactor. Builder will return `too-big.` and you'll have wasted a turn. - Don't ask `cavecrew-reviewer` for "general feedback" — it returns findings only, no architecture opinions. Use `Code Reviewer` for that when installed. - Don't expect prose. Cavecrew output is structured, sometimes terse to the point of cryptic. If a human will read it directly, paraphrase. ## Auto-clarity (inherited) Subagents drop caveman → normal English for security warnings, irreversible-action confirmations, and any output where fragment ambiguity could be misread. Resume caveman after.
From JuliusBrussee/caveman, Apache-2.0.
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caveman-compress
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Compress a memory file such as CLAUDE.md or a todo list into caveman format to save input tokens, keeping a readable backup.
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caveman-manage
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Inspect Caveman Cloud's experiment lifecycle and block unsafe execution.
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caveman-optimize
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Turn a Caveman optimization observation into an operator-chosen candidate with a paired baseline evaluation.
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caveman-evidence-review
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Read-only review of Caveman Cloud evidence: cost, Cave Score, workflows, traces, latency, errors, routing, savings.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.885score
caveman-learn
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Act on a Caveman learn report - review the ranked token sinks, apply cost-lowering fixes with per-edit consent, and report what those fixes returned.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
megacave
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Caveman in Classical Chinese: 文言文 register, far fewer characters, technical terms verbatim.
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caveman-commit
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Write a Conventional Commits message compressed to intent only.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
caveman-review
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Compressed code review - one line per finding with location, problem and fix.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
caveman-setup
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Wire a repository through the Caveman Cloud gateway so every LLM request is measured, with no behavior change.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
caveman-explore
JuliusBrussee
Read-only repository explorer for cold-start orientation, broad cross-file localization, or when a direct search failed.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
caveman-discover
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Find and label every LLM workflow in the repository so Caveman Cloud groups spend by workflow instead of one bucket.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
ultracave
JuliusBrussee
Caveman at maximum compression: fragments, one word when one word is enough, each fact once.
SkillAFreshness: A★ 114.8KClaude Code +9
Signals
- Stars
- 114,786
- Forks
- 6,616
- Open issues
- 64
- Last commit (this folder)
- Oct 6, 2026 (21 days ago)
- Last release
- Oct 13, 2026 (14 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- Apache-2.0
- Repository
- github.com/JuliusBrussee/caveman
- Website
- docs.caveman.so/caveman
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
Same skill elsewhere
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More from JuliusBrussee
- 0.888score
caveman-compress
JuliusBrussee
Compress a memory file such as CLAUDE.md or a todo list into caveman format to save input tokens, keeping a readable backup.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.885score
caveman-learn
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Act on a Caveman learn report - review the ranked token sinks, apply cost-lowering fixes with per-edit consent, and report what those fixes returned.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.885score
caveman-optimize
JuliusBrussee
Turn a Caveman optimization observation into an operator-chosen candidate with a paired baseline evaluation.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.885score
caveman-evidence-review
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Read-only review of Caveman Cloud evidence: cost, Cave Score, workflows, traces, latency, errors, routing, savings.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.885score
caveman-manage
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Inspect Caveman Cloud's experiment lifecycle and block unsafe execution.
SkillAFreshness: A★ 114.8KClaude Code +9 - 0.882score
caveman-review
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Compressed code review - one line per finding with location, problem and fix.
SkillAFreshness: A★ 114.8KClaude Code +9
Cite this page
cavecrew skill. Agent Mart. https://agentmart.dev/skills/juliusbrussee-cavecrew (last updated 2026-10-24)