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## Summary Retires the old hand-table authorities and transitional verification scaffolding from the model-capability manifest arc. All production routes now run exclusively through the generated interpreters introduced in Phase 1 ([#3821](https://github.com/block/buzz/pull/3821)) and wired in Phase 2 ([#3958](https://github.com/block/buzz/pull/3958)). Stack: [#3821](https://github.com/block/buzz/pull/3821) → [#3958](https://github.com/block/buzz/pull/3958) → this PR Base: [#3603](https://github.com/block/buzz/pull/3603) ## What the manifest system is now **Source of truth:** `scripts/model-capabilities.json` **Generator:** `scripts/generate-model-capabilities.mjs` — emits Rust and TS interpreters only (coverage JSON output removed) **Generated interpreters:** `crates/buzz-agent/src/generated_model_capabilities.rs` (+ normative tests), `desktop/src/features/agents/ui/modelCapabilities.ts` **Label registry:** `generate-databricks-model-names.py` → `databricks_model_names.rs` / `databricksModelNames.ts` **Permanent gates:** `scripts/normative-corpus.json` + `scripts/run-corpus.mjs` (both-interpreter equivalence, 51 vectors), `scripts/test-manifest-validator.mjs` (schema, 24 cases), regen-diff job inside `ci.yml` **One doc:** `scripts/MODEL_CAPABILITIES.md` ## Deleted **Old hand-table authorities (production):** - `getProviderEffortConfig_oldHandTable()` and all supporting helpers from `desktop/src/features/agents/ui/buzzAgentConfig.ts` - `normalize_effort_for_openai_route()`, `_old_anthropic_thinking_config_for_databricks_v2()`, test-only re-export wrappers from `crates/buzz-agent/src/config.rs` - `strip_catalog_prefix()`, `anthropic_thinking_config()`, `anthropic_model_supports_xhigh()`, `clamp_adaptive_effort()`, `anthropic_efforts_for_model()`, `is_manual_budget_model()`, `is_adaptive_thinking_model()`, `gpt5_token_matches()`, `gpt5_base_matches()`, `openai_efforts_for_model()` from `crates/buzz-agent/src/config.rs` — all superseded by generated interpreter - Old DBv2 body-level tests, `_OLD_DATABRICKS_V2_*` constants, `model_name_segments()`, `_old_databricks_v2_route_for_model()`, all Phase-2 behavioral differential test functions from `crates/buzz-agent/src/llm.rs` **Transitional scaffolding:** - `scripts/run-differential.mjs` — old-vs-new JS differential harness - `scripts/run-mutation-evidence.mjs` — one-time mutation evidence runner - `desktop/src/features/agents/ui/effortTable.fixture.json` — Phase-2 TS/Rust sync fixture - `desktop/src/features/agents/ui/effortTable.fixture.test.mjs` — fixture sync guard - `.github/workflows/model-capability-regen-diff.yml` — standalone workflow (steps folded into `ci.yml`) **One-time evidence and generated snapshots:** - `scripts/MUTATION_EVIDENCE.md`, `scripts/MODEL_CAPABILITIES_SCHEMA.md`, `scripts/MODELS_DEV_RECONCILIATION.md` — consolidated into `scripts/MODEL_CAPABILITIES.md` - `scripts/generated-model-capabilities-coverage.json` — full-table snapshot (generator no longer emits it) - `scripts/catalog-sample-fixture.json` — models.dev snapshot used only by the deleted differential harness ## Verification - `cargo test -p buzz-agent --lib` with `RUSTFLAGS="-D warnings"`: **337/337** (clean — no dead_code warnings) - `node --experimental-strip-types scripts/run-corpus.mjs`: **51/51** - `node scripts/generate-model-capabilities.mjs` + regen diff: **clean (exit 0)** - `node --test scripts/test-manifest-validator.mjs`: **24/24** - `just clippy`: zero warnings, zero errors --------- Signed-off-by: Will Pfleger <pfleger.will@gmail.com> Co-authored-by: npub1mn7jgtj4w2pd0g0zeuhxsa6jy6p0rewxz4kujt98my82ahfmp72sxjexk7 <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>