Progressive-disclosure instructions an agent loads on demand. Cheap until invoked, which is why the per-session figure on each card is usually two digits.
Plugin Claude Code
Ultra-compressed communication mode. Cuts 65% of output tokens against an unprompted baseline (measured) while keeping full technical accuracy by speaking like a caveman.
Instructions file CodexOpenCode
AGENTS.md instructions for JuliusBrussee/caveman: Read CLAUDE.md before repository work. Binding routing: this repo owns skills, Engine, and MV3 extension; Agent SDK work belongs in /Users/julb/Desktop/GitHub/caveman-agent-sdk; Browse driver/MCP/benchmark/plugin work belongs in…
Instructions file
Claude Code instructions for JuliusBrussee/caveman, covering claude.md — caveman, readme is a product artifact, project overview, repository routing and what lives where.
Instructions file Gemini CLI
Gemini CLI instructions for JuliusBrussee/caveman: @./skills/caveman/SKILL.md @./skills/caveman-commit/SKILL.md @./skills/caveman-review/SKILL.md @./skills/caveman-compress/SKILL.md.
Agent
Surgical 1-2 file edit. Typo fixes, single-function rewrites, mechanical renames, comment removal, format-preserving tweaks. Hard refuses 3+ file scope. Returns caveman diff receipt. Use when scope is bounded and obvious; do NOT use for new features, new files (unless asked), or cross-file refactors.
Agent
Read-only code locator. Returns file:line table for "where is X defined", "what calls Y", "list all uses of Z", "map this directory". Output is caveman-compressed so the main thread eats 60% fewer tokens than vanilla Explore. Refuses to suggest fixes.
Agent
Diff/branch/file reviewer. One line per finding, severity-tagged, no praise, no scope creep. Output format path:line: : . . Use for "review this PR", "review my diff", "audit this file". Skips formatting nits unless they change meaning.
Skill Claude CodeCodex
Ultra-compressed communication mode that cuts output tokens while keeping technical accuracy. Levels: lite, full, ultra and the wenyan variants. Use for /caveman, "caveman mode", "talk like caveman", "be brief" or "less tokens".
Skill Claude CodeCodex
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. Use when asked to lower an agent's token cost, what caveman has saved, to trim a heavy CLAUDE.md, or to offload re-pasted context into cavemem.
Skill Claude CodeCodex
Wire a repository through the Caveman Cloud gateway so every LLM request is measured, with no behavior change. Use for "set up caveman" or adding LLM spend observability.
Command
Compress a markdown/text file into caveman format to save tokens.
Command
Quick reference card for caveman modes, slash commands, and triggers.
Command
Activate caveman mode (lite | full | ultra | wenyan-lite | wenyan-full | wenyan-ultra | off).
Skill Claude CodeCodex
FastAPI best practices and conventions. Use when working with FastAPI APIs, Pydantic models, dependencies, streaming responses including Server-Sent Events (SSE), and serving frontend apps. Keeps FastAPI code clean and up to date with the latest features and patterns.
Skill Claude CodeCodex ✓ vendor
Comprehensive writing guide for Angular documentation (adev). Covers Google Technical Writing standards, Angular-specific markdown extensions, code blocks, and components. You MUST use this skill any time you plan to create, edit, or review documentation files in adev/ or adev/src/content.
Skill Claude CodeCodex ✓ vendor
Guidelines and tools for reviewing pull requests in the Angular repository.
Skill Claude CodeCodex ✓ vendor
Explains the mental model and architecture of the code under packages/forms/signals. You MUST use this skill any time you plan to work with code in packages/forms/signals.
Instructions file CodexOpenCode ✓ vendor
Instructions for angular/angular, covering environment, key documentation, testing and pull requests.
Cursor rule ✓ vendor
This rule provides comprehensive best practices and coding standards for Angular development, focusing on modern TypeScript, standalone components, signals, and performance optimizations.
Instructions file CodexOpenCode
AGENTS.md instructions for earendil-works/pi, covering development rules, conversational style, code quality, commands and dependency and install security.
Agent
Creates implementation plans from context and requirements.
Agent
Code review specialist for quality and security analysis.
Agent
Fast codebase recon that returns compressed context for handoff to other agents.
Skill Claude CodeCodex
A skill that cannot be invoked by the model.
At most 3 mods per repository are shown here — the rest are on their repository pages: