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Seth Hobson 9b6b4c1254 Add OpenCode global install support (#555 )

* Add OpenCode global install support

* Format OpenCode PR updates

* Address OpenCode install review feedback

* Cover OpenCode skill name length validation

* Guard OpenCode stale artifact scan

2026-05-24 21:00:54 -04:00

5.1 KiB

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Cross-harness capability matrix

claude-agents is a multi-harness plugin marketplace. Source-of-truth lives under plugins/ as Claude Code markdown. Per-harness artifacts are generated by adapters under tools/adapters/.

This file mirrors the capability matrix in tools/adapters/capabilities.py. Edit there; regenerate via make docs.

Supported harnesses

Harness	Status	Generated paths
Claude Code	source-of-truth	`plugins/`, `.claude-plugin/marketplace.json`
OpenAI Codex CLI	supported	`.codex/skills/`, `.codex/agents/`, `AGENTS.md`
Cursor (2.5+)	supported	`.cursor-plugin/`, `.cursor/rules/` (curated)
OpenCode (`sst/opencode`)	supported	`.opencode/agents/`, `.opencode/commands/`, `.opencode/skills/`, `opencode.json`
Gemini CLI	supported	`skills/`, `agents/`, `commands/` (at extension root)

Capability matrix

Capability	Claude Code	Codex	Cursor	OpenCode	Gemini
Skills (SKILL.md native)	✅	✅	✅ via `.claude/`	✅ via `.opencode/skills/`	✅ (auto-discovered)
Subagents (markdown native)	✅	TOML format	✅ via `.claude/`	✅ (different frontmatter)	✅ (April 2026 spec)
Slash commands	✅	converted to skills	✅	✅	TOML at `commands/`
Plugin marketplace	✅	—	✅ (2.5+)	—	— (direct URL install)
Parallel subagents	✅	✅	✅	✅	✅ (April 2026)
Per-agent tool allowlist	✅ (`tools:`)	only `sandbox_mode`	only `readonly:`	✅ (`permission:` block)	✅ (`tools:`)
`TodoWrite` tool	✅	—	—	✅	—
`Task`/`Agent` spawn tool	✅	name in prose	✅	✅ (`task`)	`@agent` syntax
MCP servers	✅	✅	✅	✅	✅
Lifecycle hooks	✅	—	—	✅ (TS plugins)	—
Context file	`CLAUDE.md`	`AGENTS.md` (32 KiB cap)	`AGENTS.md`	`AGENTS.md` / `~/.claude/CLAUDE.md`	`GEMINI.md`
Context file recommended cap	150 lines / 500 tokens	150 lines / 500 tokens	150 lines / 500 tokens	150 lines / 500 tokens	150 lines / 500 tokens
Skill body hard cap	none	8 KB	none	none	none
Tool name case	CamelCase (`Read`)	action verbs (no tool vocab)	lowercase	lowercase (strict)	lowercase (Gemini names)
Bare model aliases	✅ (`opus`/`sonnet`/`haiku`)	mapped to GPT-5 family	use `inherit`	full provider/model-id	mapped to `gemini-2.5-*`

Graceful degradation

Each adapter handles incompatibilities mechanically — authors don't need to know the per-harness rules to write portable content.

Source pattern	Codex	Cursor	OpenCode	Gemini
`tools: Read, Grep` (agent allowlist)	dropped; `sandbox_mode = "read-only"` heuristic	dropped (Cursor doesn't honor)	converted to `permission:` deny block	passed through
`color: blue` (agent)	dropped	dropped	dropped	dropped
`model: opus` (agent)	mapped to `gpt-5`	rewritten to `inherit`	rewritten to `anthropic/claude-opus-4-7`	mapped to `gemini-2.5-pro`
`TodoWrite` in body	no equivalent — leave as-is	no equivalent — leave as-is	works as-is	no equivalent
Skill body > 8 KB	split into `references/details.md`	passed through	passed through	passed through
Agent named `worker`	namespaced to `<plugin>__worker`	passed through	passed through	passed through
Slash command (`commands/<x>.md`)	converted to skill	passed through	rewritten to `.opencode/commands/`	TOML at `commands/<plugin>/<x>.toml`

Output paths (all gitignored)

.claude-plugin/marketplace.json   # SOURCE OF TRUTH (committed)
plugins/                          # SOURCE OF TRUTH (committed)
GEMINI.md, AGENTS.md*             # context files (committed/generated)
.codex/skills/, .codex/agents/    # generated by Codex adapter
.cursor-plugin/, .cursor/rules/   # generated by Cursor adapter
.opencode/agents/, .opencode/commands/, .opencode/skills/, opencode.json   # generated by OpenCode adapter
skills/, agents/, commands/       # generated by Gemini adapter (at extension root; not for OpenCode install)

Regenerating

make generate HARNESS=codex
make generate HARNESS=cursor
make generate HARNESS=opencode
make generate HARNESS=gemini
# Or all at once:
make generate-all

# Optional global OpenCode install:
make install-opencode
make uninstall-opencode

External Pensyve integrations

The Claude Code marketplace includes Pensyve as an external git-subdir plugin. For generated harnesses, use Pensyve's upstream harness-native integration:

Harness	Upstream integration
Claude Code	`https://github.com/major7apps/pensyve.git`, path `integrations/claude-code`
Codex CLI	`integrations/codex-plugin`
Cursor	`integrations/cursor`
OpenCode	`integrations/opencode-plugin`
Gemini CLI	`gemini extensions install https://github.com/major7apps/pensyve`

5.1 KiB Raw Blame History