Ecosystem

Community plugins rewritten on the AgentPlugins universal manifest. Each targets Tier-1 functional parity — the same functionality across Claude Code, Codex, OpenCode, and Pi Mono.

Install any plugin with a single command:

agentplugins add owner/repo

This installs the plugin into ~/.agents/plugins/<name>/ and symlinks it to every detected agent on your machine.

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Available plugins

caveman

Why use many token when few do trick. Ultra-compressed communication mode — cuts ~75% of output tokens while preserving full technical accuracy. Includes the cavecrew of subagent presets for compressed delegation.

Functionality: skills + agents[] cavecrew (investigator / builder / reviewer) + lifecycle hooks
Replaces: the 850-line custom caveman installer — agentplugins add handles detection and symlinking across all tier-1 harnesses

agentplugins add JuliusBrussee/caveman

Tier-1	Claude Code	Codex	OpenCode	Pi Mono
Skills (caveman + 6 companions)	✅	✅	✅	✅
Cavecrew agents[]	✅	✅	✅	✅
sessionStart hook	✅	✅	✅	✅

Note: The caveman-shrink MCP proxy utility is not declared in mcpServers — it wraps an existing server rather than acting as a standalone one. See src/mcp-servers/caveman-shrink/README.md for manual setup.

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ponytail

He says nothing. He writes one line. It works. Lazy senior dev mode — forces the minimum solution that works: YAGNI → stdlib → native → one line.

Functionality: skills + lifecycle hooks + 6 slash commands + subagentStart
Replaces: ponytail's per-harness install scripts; promptfoo benchmark preserved and unchanged

agentplugins add DietrichGebert/ponytail

Tier-1	Claude Code	Codex	OpenCode	Pi Mono
Skills (ponytail + 5 sub-skills)	✅	✅	✅	✅
sessionStart + userPromptSubmit	✅	✅	⚠️	✅
subagentStart	✅	✅	⚠️	✅
Commands (/ponytail + 5 variants)	✅	✅	✅	✅

⚠️ OpenCode: subagentStart and userPromptSubmit have no native equivalent — these hooks are ignored with a WARN. See compat matrix.

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Coming in v0.4.0

Plugin	Description	Primitive
agentplugins-goal	Autonomous goal-loop across all Tier-1	continueWith (4.1)
agentplugins-btw	Parallel side-thread thoughts	native passthrough (4.2)
agentplugins-flow	Subagent orchestration via provider protocol	spawnChild (4.3)

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Adding your plugin

1. Build on the AgentPlugins universal manifest (see Creating Plugins)
2. Target all four Tier-1 harnesses and confirm functional parity
3. Open a PR or issue to add your plugin to this page

See Rewriting for Tier-1 Parity for the step-by-step process.