Files
msd-core/capabilities/opencode/capability.json
Tom Boucher 396f44bd0b feat(architecture): [EoS/opencode] Migrate OpenCode onto the Embeddable Orchestration System (ADR-1239, #2087)
Route OpenCode (and its Kilo sibling) through the public Host-Integration Interface and
land two Context7-verified capability upgrades. Byte-identical install output for all 16
runtimes (golden parity asserted).

Through the interface (AC2):
- OpenCode/Kilo's bespoke commands+skills+plugin install (the inline
  `else if (isOpencode || isKilo)` block) moves into the engine
  (installOpencodeFamilyCommands/Artifacts in src/install-engine.cts), dispatched by
  installRuntimeArtifacts when the descriptor declares hostBehaviors.combinedFamilyInstall.
  opencode/kilo now flow CLI -> _runtimeAdapter -> installRuntimeArtifacts like the skills
  runtimes. _isSkillsRuntime no longer excludes them; the bespoke block + dead
  copyFlattenedCommands are removed.
- Every hardcoded `runtime === 'opencode'`/`isOpencode` branch is folded into
  descriptor-driven runtime.hostBehaviors. ZERO `runtime === 'opencode'`/`'kilo'`
  string-equality remain in bin/install.js / install-engine.cts / runtime-artifact-conversion.cts.

Upgrades (AC4):
- Background dispatch: OpenCode shipped experimental background subagents in v1.15 and
  made them default-on in v1.17 -> dispatch.background/backgroundDispatch flip to true;
  shouldFlattenDispatch(opencode) now returns false (behavioral change; type: Changed).
- Expanded event surface: the OpenCode plugin subscribes permission.asked/replied +
  session.error.

Tests: opencode-imperative-reference (adapter/profile, shouldFlattenDispatch pin,
fail-closed negotiate, hostBehaviors, AC2 source-guard) + extended plugin surface test.
Docs: capability matrix v1.15/v1.17 citations. Changeset (Changed). gitignore .memdb//.memtrace/.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-08 17:17:05 -04:00

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JSON

{
"id": "opencode",
"role": "runtime",
"version": "1.7.0-rc.4",
"title": "OpenCode",
"description": "OpenCode — XDG-based config dir; flat command/ + skills artifact layout; settings-json config format; no lifecycle hook registration; tier-2 support.",
"tier": "core",
"requires": [],
"engines": {
"gsd": ">=1.6.0"
},
"runtime": {
"configHome": {
"kind": "xdg",
"name": "opencode",
"env": [
"OPENCODE_CONFIG_DIR",
"OPENCODE_CONFIG",
"XDG_CONFIG_HOME"
]
},
"localConfigDir": ".opencode",
"configFormat": "settings-json",
"artifactLayout": {
"global": [
{
"kind": "commands",
"destSubpath": "command",
"prefix": "gsd-",
"nesting": "flat",
"recursive": false,
"converter": null
},
{
"kind": "skills",
"destSubpath": "skills",
"prefix": "gsd-",
"nesting": "flat",
"recursive": true,
"converter": "convertClaudeCommandToOpencodeSkill"
}
],
"local": [
{
"kind": "commands",
"destSubpath": "command",
"prefix": "gsd-",
"nesting": "flat",
"recursive": false,
"converter": null
},
{
"kind": "skills",
"destSubpath": "skills",
"prefix": "gsd-",
"nesting": "flat",
"recursive": true,
"converter": "convertClaudeCommandToOpencodeSkill"
}
]
},
"commandStyle": "slash-hyphen",
"hooksSurface": "none",
"extensionEvents": "opencode",
"sandboxTier": "none",
"supportTier": 2,
"installSurface": "settings-json",
"writesSharedSettings": true,
"permissionWriter": "opencode",
"extendedHookEvents": [],
"hostIntegration": {
"embeddingMode": "imperative",
"commandSurface": "slash-file",
"dispatch": {
"namedDispatch": true,
"nested": "undocumented",
"maxDepth": "undocumented",
"background": true,
"subagentToolkit": "full",
"backgroundDispatch": true
},
"modelMode": "active",
"hookBus": "host",
"stateIO": "filesystem",
"transport": "mcp",
"runtime": "bun"
},
"hostBehaviors": {
"reapplyCommand": "/gsd-update --reapply",
"attributionConfigResolver": "opencode",
"flatCommandDir": "command",
"combinedFamilyInstall": true,
"frontmatterDialect": "opencode",
"nativePlugin": {
"dir": "plugins",
"file": "gsd-core.js",
"source": ".opencode/plugins/gsd-core.js"
},
"skipHomePrefixSubstitution": true,
"skipSettingsUi": true,
"skipUpdateBannerCommand": true,
"skipCodexSkillsManifest": true
}
}
}