install.js silently no-ops OpenCode surface install (references undefined shared.harnessInstall) — no hooks/skills/commands ever registered with OpenCode

[tbille]

Summary

After installing @a5c-ai/babysitter-opencode@6.0.2 (reproduced identically on 6.0.3-staging.bf012dbb7bff), the plugin bundle is copied into .opencode/plugins/babysitter/, but none of it is ever wired into OpenCode's actual discovery mechanisms. No babysitter hooks fire, no babysitter skills appear in <available_skills>, and no /babysitter:* command is registered as an OpenCode slash command.

Root cause

bin/install.js:

shared.copyPluginBundle(PACKAGE_ROOT, pluginRoot);
shared.ensureMarketplaceEntry(marketplacePath, pluginRoot);
if (typeof shared.harnessInstall === 'function') {
  shared.harnessInstall(PACKAGE_ROOT, pluginRoot);
}

install-shared.js never defines or exports a function named harnessInstall, so this is a permanent no-op. Confirmed directly:

$ node -e "const s=require('./bin/install-shared.js'); console.log('harnessInstall' in s)"
false

The correct OpenCode-specific logic already exists in install-shared.js but is never called from the install entrypoint:

• installOpenCodeSurface(packageRoot, openCodeHome) would copy skills/* up to .opencode/skills/<name>/SKILL.md (the path OpenCode scans per https://opencode.ai/docs/skills) and merge hooks into a top-level .opencode/hooks.json.
• writeIndexJs(pluginRoot) would write .opencode/plugins/babysitter/index.js, the JS entry point OpenCode's plugin loader needs (OpenCode only auto-loads JS/TS files directly, per https://opencode.ai/docs/plugins — it doesn't read plugin.json/hooks.json manifests). This is currently only invoked from installAccomplishSurface, never from the standard OpenCode CLI install path.

Separately: even after fixing harnessInstall, there is no code path anywhere in install-shared.js that copies commands/*.md out to .opencode/commands/ (the only location OpenCode's command scanner reads — flat .md files, per https://opencode.ai/docs/commands). So bundled /babysitter:* commands can never surface as real OpenCode slash commands; they're just docs sitting in an unreachable plugin subdirectory.

Repro

npx --yes @a5c-ai/babysitter-opencode@6.0.2 install --workspace <project>
find <project>/.opencode/plugins/babysitter -maxdepth 1
# -> commands/ hooks/ plugin.json skills/ versions.json (no index.js)
find <project>/.opencode/skills 2>/dev/null    # does not exist
cat <project>/.opencode/hooks.json 2>/dev/null # does not exist

Expected

After install, OpenCode should load babysitter hooks, list babysitter skills in <available_skills>, and ideally expose /babysitter:* as real slash commands.

Environment

• @a5c-ai/babysitter-opencode: 6.0.2 (also reproduced on 6.0.3-staging.bf012dbb7bff)
• @a5c-ai/babysitter-sdk (CLI): 6.0.2
• OS: macOS (darwin)

Suggested fix

Replace the dead harnessInstall check in bin/install.js with direct calls to shared.installOpenCodeSurface(...) and shared.writeIndexJs(pluginRoot), and add a step copying commands/*.md into .opencode/commands/ (e.g. flattened as babysitter-doctor.md) so they register as real OpenCode slash commands.