## Verification Report

**Change**: capability-based-agent-composition  
**Version**: N/A

---

### Completeness
| Metric | Value |
|--------|-------|
| Tasks total | 10 |
| Tasks complete | 10 |
| Tasks incomplete | 0 |

All tracked tasks in `tasks.md` are marked complete.

---

### Build & Tests Execution

**Build**: ➖ Skipped by request (`do NOT build`)

**Formatting**: ✅ Passed

Command run:

```bash
cargo fmt --all -- --check
```

Result: formatting check passed for the Rust workspace.

**Tests**: ✅ 26 passed / ❌ 0 failed / ⚠️ 0 skipped

Commands run:

```bash
cargo test -p corvus-composer
cargo test run_command_composes_agent_with_existing_builder_seam
cargo test composed_bootstrap_materializes_selected_components_only
cargo test composed_plan_preserves_channel_selection_for_future_runtime_wiring
cargo test composed_bootstrap_matches_full_runtime_for_lite_profile_path
cargo test full_runtime_starts_without_manifest
cargo test centralized_channel_factory_reuses_registry_for_named_lookup
cargo test factory_none_returns_noop
cargo test factory_none_uses_noop_memory
cargo test require_none_backend_returns_error
```

Observed results:
- `corvus-composer`: 8 passed
- targeted runtime/composer seam tests: 18 passed
- no failing or skipped targeted tests observed

**Coverage**: ➖ Not configured

---

### Spec Compliance Matrix
| Requirement | Scenario | Test | Result |
|-------------|----------|------|--------|
| Manifest v1 Schema Contract | Valid manifest uses PRD-aligned family sections | `crates/corvus-composer/src/lib.rs > valid_manifest_resolves_prd_v1_plan` | ✅ COMPLIANT |
| Manifest v1 Schema Contract | Default provider must be enabled | `crates/corvus-composer/src/lib.rs > default_provider_must_be_enabled` | ✅ COMPLIANT |
| Manifest v1 Schema Contract | Required family selections are enforced | `crates/corvus-composer/src/lib.rs > missing_required_family_selection_fails_before_composition` | ✅ COMPLIANT |
| Registry-Backed Semantic Validation | Validation uses live registries for all capability families | `crates/corvus-composer/src/lib.rs > valid_manifest_resolves_prd_v1_plan` + `registry_snapshot.rs` | ⚠️ PARTIAL |
| Registry-Backed Semantic Validation | Capability family mismatch is rejected deterministically | `crates/corvus-composer/src/lib.rs > family_mismatch_is_rejected_deterministically` | ✅ COMPLIANT |
| Registry-Backed Semantic Validation | Per-capability configuration is bound to selected capability identity | `crates/corvus-composer/src/lib.rs > config_for_unselected_capability_is_rejected` | ⚠️ PARTIAL |
| Availability and Unsupported Capability Failures | Unknown capability fails before composition | `crates/corvus-composer/src/lib.rs > unknown_capability_failure_is_distinct` | ✅ COMPLIANT |
| Availability and Unsupported Capability Failures | Uncompiled capability fails distinctly from unknown capability | `crates/corvus-composer/src/lib.rs > uncompiled_capability_failure_is_distinct` | ✅ COMPLIANT |
| Availability and Unsupported Capability Failures | Platform-unavailable capability fails distinctly from uncompiled capability | `crates/corvus-composer/src/lib.rs > platform_unavailable_failure_is_distinct` | ✅ COMPLIANT |
| Availability and Unsupported Capability Failures | Invalid capability configuration fails deterministically | `crates/corvus-composer/src/lib.rs > config_for_unselected_capability_is_rejected` | ⚠️ PARTIAL |
| Compose-to-AgentBuilder Behavior | Valid manifest composes into runtime builder inputs | `src/composer.rs > run_command_composes_agent_with_existing_builder_seam`; `src/bootstrap/composed.rs > composed_bootstrap_materializes_selected_components_only` | ✅ COMPLIANT |
| Compose-to-AgentBuilder Behavior | Only manifest-selected capabilities are composed for the MVP path | `src/bootstrap/composed.rs > composed_bootstrap_materializes_selected_components_only`; `src/bootstrap/composed.rs > composed_plan_preserves_channel_selection_for_future_runtime_wiring` | ⚠️ PARTIAL |
| Compose-to-AgentBuilder Behavior | Composer preserves runtime behavior of selected capabilities | `src/bootstrap/composed.rs > composed_bootstrap_matches_full_runtime_for_lite_profile_path` | ✅ COMPLIANT |
| Full-Runtime Backward Compatibility | Existing full runtime starts without a manifest | `src/agent/agent.rs > full_runtime_starts_without_manifest` | ✅ COMPLIANT |
| Full-Runtime Backward Compatibility | Manifest-driven subset does not remove full-capability mode | `src/composer.rs > run_command_composes_agent_with_existing_builder_seam`; `src/agent/agent.rs > full_runtime_starts_without_manifest` | ✅ COMPLIANT |
| Deferred Work Boundaries for the Composer MVP | Dynamic plugin loading is not required for manifest composition | static evidence: registry snapshot only uses compiled registries/factories | ⚠️ PARTIAL |
| Deferred Work Boundaries for the Composer MVP | Full runtime inversion remains deferred for the composer | static evidence: `bootstrap/composed.rs` feeds existing bootstrap/agent seams | ⚠️ PARTIAL |
| Composition MVP Multi-Family Registries | Each MVP capability family exposes a registry-backed composition surface | registry/factory modules exist for provider/channel/tool/memory/observability/security | ⚠️ PARTIAL |
| Composition MVP Multi-Family Registries | Migration may retain compatibility shims behind the registry boundary | `centralized_channel_factory_reuses_registry_for_named_lookup`; `factory_none_returns_noop`; `factory_none_uses_noop_memory`; `require_none_backend_returns_error` | ✅ COMPLIANT |
| Composition MVP Multi-Family Registries | Family boundaries remain explicit during composition | static evidence: family-specific crates/types and resolver families | ⚠️ PARTIAL |
| Registry Availability and Identity Semantics | Registry reports constructible compiled capability deterministically | positive-path composer/boot tests above | ⚠️ PARTIAL |
| Registry Availability and Identity Semantics | Registry distinguishes unknown from unavailable capability | `unknown_capability_failure_is_distinct`; `uncompiled_capability_failure_is_distinct`; `platform_unavailable_failure_is_distinct` | ✅ COMPLIANT |
| Registry Availability and Identity Semantics | Registry identity remains audit-visible across families | static evidence: stable keys/aliases preserved in registry records and validation errors | ⚠️ PARTIAL |
| Deterministic Validation Boundaries for Composition | Structural validation fails before registry lookup | `missing_required_family_selection_fails_before_composition`; `run_command_reports_validation_failures` | ✅ COMPLIANT |
| Deterministic Validation Boundaries for Composition | Availability validation fails before composition begins | `unknown_capability_failure_is_distinct`; `uncompiled_capability_failure_is_distinct`; `platform_unavailable_failure_is_distinct` | ✅ COMPLIANT |
| Deterministic Validation Boundaries for Composition | Platform validation remains a separate deterministic boundary | `platform_unavailable_failure_is_distinct` | ✅ COMPLIANT |
| Boot-Time Composition MVP Compatibility Baseline | Composed boot path targets the existing runtime builder baseline | `run_command_composes_agent_with_existing_builder_seam` | ✅ COMPLIANT |
| Boot-Time Composition MVP Compatibility Baseline | Full-runtime bootstrap remains valid | `full_runtime_starts_without_manifest` | ✅ COMPLIANT |
| Boot-Time Composition MVP Compatibility Baseline | Dynamic plugins remain deferred beyond the MVP | static evidence only | ⚠️ PARTIAL |
| Phased Roadmap Constraints for Later Adoption | Composition MVP combines only the bounded implementation slices | static scope evidence only | ⚠️ PARTIAL |
| Phased Roadmap Constraints for Later Adoption | Full runtime inversion remains deferred after the MVP | static scope evidence only | ⚠️ PARTIAL |
| M2 Anti-Scope and Deferred Work Constraints | Non-MVP runtime inversion work remains out of scope | static evidence only | ⚠️ PARTIAL |
| M2 Anti-Scope and Deferred Work Constraints | Generalized dependency orchestration remains deferred | static resolver remains deterministic and non-orchestrating | ⚠️ PARTIAL |

**Compliance summary**: 18/33 scenarios compliant, 15 partial, 0 untested

---

### Correctness (Static — Structural Evidence)
| Requirement | Status | Notes |
|------------|--------|-------|
| Manifest v1 schema | ✅ Implemented | `crates/corvus-composer/src/manifest.rs` matches the v1 family sections and config maps. |
| Registry-backed validation | ✅ Implemented | `registry_snapshot.rs` collects live family registries; `resolver.rs` validates through snapshot lookup instead of stale composer tables. |
| Distinct unknown/uncompiled/platform failure classes | ✅ Implemented | `ValidationError` plus family registries/factories preserve separate failure classes. |
| Compose to existing builder seam | ✅ Implemented | `src/bootstrap/composed.rs` materializes provider/memory/observer/security/tools and calls `Agent::from_bootstrap_with_provider`. |
| Full-runtime compatibility baseline | ✅ Implemented | Existing `bootstrap/mod.rs` and `Agent::from_config` baseline remain intact and additive composed path lives beside them. |
| MVP scope boundaries | ✅ Implemented | No dynamic plugin loader or generalized dependency solver was added. |
| Channel/runtime parity | ⚠️ Partial | Channel selections are resolved and preserved in the plan, but `bootstrap_from_plan` still does not materialize/start selected channels. |
| Behavioral parity proof | ✅ Implemented (targeted) | Lite-profile parity between composed bootstrap and full bootstrap is now covered by test. |

---

### Coherence (Design)
| Decision | Followed? | Notes |
|----------|-----------|-------|
| Preserve `AgentBuilder` / bootstrap as integration target | ✅ Yes | Composed path feeds existing bootstrap/agent seam. |
| Make extracted crates the source of truth for compiled availability | ✅ Yes | `corvus-composer` uses live registry snapshots from capability crates. |
| Keep root runtime modules as compatibility shims | ✅ Yes | Root modules still expose creation APIs; targeted shim tests passed. |
| Limit MVP to boot-time selection, not runtime inversion | ✅ Yes | No new parallel runtime/execution model introduced. |
| Add `corvus-observability` now | ✅ Yes | New crate exists and is used by observer resolution. |
| Separate manifest resolution from object materialization | ✅ Yes | `corvus-composer` produces `ComposedRuntimePlan`; root runtime materializes objects. |
| Materialize selected channels through the composed boot path | ⚠️ Deviated | Plan captures channels, but current composed bootstrap path still stops short of channel construction/startup. |

---

### Issues Found

**CRITICAL** (must fix before archive):
None.

**WARNING** (should fix):
- Channel selection is validated and preserved in `ComposedRuntimePlan`, but the composed bootstrap path does not yet materialize manifest-selected channels, so channel-family MVP behavior remains only partially verified.
- Per-capability config validation is only partially covered at runtime; tests prove rejection of unselected config, not full positive binding behavior for all families.
- Several architecture-boundary scenarios still rely on static evidence instead of dedicated runtime tests.

**SUGGESTION** (nice to have):
- Add one focused integration test that proves `run --manifest` surfaces an unknown-capability error distinctly at the CLI path, not just in composer-unit validation.
- Add a targeted positive-path config-binding test for one channel or tool family using selected capability config data.
- Add channel materialization/startup coverage once the composed runtime begins wiring channels beyond plan preservation.

---

### Verdict
PASS WITH WARNINGS

The implementation satisfies the MVP boundaries for registry-backed manifest validation and boot-time composition into the existing runtime seam, and the relevant formatting/tests now pass; remaining gaps are limited to partial channel wiring and additional runtime-proof depth for some boundary/config scenarios.
