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feat(architecture): [EoS/opencode] Migrate OpenCode onto the Embeddable Orchestration System (ADR-1239, #2087)

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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>
This commit is contained in:
Tom Boucher
2026-07-08 16:53:54 -04:00
parent ab78797ac5
commit 396f44bd0b
16 changed files with 450 additions and 155 deletions
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9
src/runtime-artifact-conversion.cts
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@@ -2507,7 +2507,7 @@ function rewriteStagedSkillBodies(stagedDir, opts) {
const resolvedTarget = path.resolve(configDir).replace(/\\/g, '/');
const homeDir = homedir().replace(/\\/g, '/');
const isGlobal = scope === 'global';
const isOpencode = runtime === 'opencode';
const isOpencode = false; // #2087: opencode installs via the combined-family engine path, never through the generic rewrite
const isWindowsHost = platform === 'win32';
const pathPrefix = computePathPrefix({ isGlobal, isOpencode, isWindowsHost, resolvedTarget, homeDir });
const attribution = resolveAttribution ? resolveAttribution(runtime) : undefined;
@@ -2543,7 +2543,7 @@ function rewriteStagedCommandBodies(stagedDir, opts) {
const resolvedTarget = path.resolve(configDir).replace(/\\/g, '/');
const homeDir = homedir().replace(/\\/g, '/');
const isGlobal = scope === 'global';
const isOpencode = runtime === 'opencode';
const isOpencode = false; // #2087: opencode installs via the combined-family engine path, never through the generic rewrite
const isWindowsHost = platform === 'win32';
const pathPrefix = computePathPrefix({ isGlobal, isOpencode, isWindowsHost, resolvedTarget, homeDir });
const attribution = resolveAttribution ? resolveAttribution(runtime) : undefined;
@@ -2672,6 +2672,11 @@ export = {
neutralizeAgentReferences,
convertClaudeCommandToOpencodeSkill,
convertClaudeCommandToKiloSkill,
// #2087 — opencode/kilo command-frontmatter converters, exported so the
// layout-driven `convertedCommandsKind` can resolve them by name (routes the
// opencode/kilo command install through the engine instead of the bespoke path).
convertClaudeToOpencodeFrontmatter,
convertClaudeToKiloFrontmatter,
readGsdCommandNames,
transformContentToHyphen,
// #1383: version resolver (exported for regression test of the Codex