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feat(agent): AgentHarness streams through a required Models instance (phase 6)

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AgentHarnessOptions.models is required; the harness stream path,
compaction, and branch summarization go through models.streamSimple()/
completeSimple() instead of the compat globals. getApiKeyAndHeaders
stays and wins per-field over provider-resolved auth, but is no longer
required: without it, requests resolve through provider auth.

compact()/generateSummary()/generateBranchSummary() take a Models
parameter; explicit apiKey becomes optional. StreamFn is redefined
structurally (Models.streamSimple satisfies it), dropping the compat
type dependency from agent types.

Harness tests build per-file Models collections with fauxProvider()
and unique provider ids instead of mutating the global api-registry.
This commit is contained in:
Mario Zechner
2026-06-10 21:27:21 +02:00
parent 8a0903ebf2
commit f0ccbbf011
10 changed files with 175 additions and 110 deletions
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packages/agent/docs/models.md
+5 -4
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@@ -820,9 +820,9 @@ Check items off as they land. Keep this list current; it is the working state fo
### Phase 6 — AgentHarness
- [ ] `AgentHarnessOptions.models` required; harness stream path uses `models.streamSimple()`.
- [ ] Compaction/branch-summarization paths use the harness `Models` instance.
- [ ] Harness tests use `createModels()` + faux provider.
- [x] `AgentHarnessOptions.models` required (`readonly models` on the harness); the harness stream path uses `models.streamSimple()`. `StreamFn` redefined structurally (no compat type dependency); `Models.streamSimple` satisfies it.
- [x] Compaction/branch-summarization take the harness `Models` instance; explicit `getApiKeyAndHeaders` auth stays and wins per-field, but is no longer required — requests resolve through provider auth otherwise (the hard "No auth available" throws are gone).
- [x] Harness tests use `createModels()` + `fauxProvider()` with unique per-fake provider ids; no global api-registry state, no unregister bookkeeping.
### Phase 7 — coding-agent bridge (minimal)
@@ -843,8 +843,9 @@ The full AuthStorage deletion (`FileCredentialStore` + decorators, see "Replacin
### Deferred / follow-ups
- [ ] Web OAuth implementations (sitegeist-style) behind `oauth: "web"`.
- [ ] Web OAuth implementations (sitegeist-style) as an alternative `OAuthAuth`.
- [ ] coding-agent `ModelRegistry` -> session `ModelManager` migration; delete `/compat`.
- [ ] Move ALL internal `/compat` imports to the new API before compat is deleted: every package's src, all tests, and the example extensions (examples then demonstrate the new API; the extension-loader root-to-compat alias dies with compat). Nothing inside the repo may import `/compat` at that point.
- [ ] Images API registry redesign (untouched in this pass).
## Error behavior