## Verification Report

**Change**: slash-session-discoverability
**Version**: N/A

---

### Completeness
| Metric | Value |
|--------|-------|
| Tasks total | 11 |
| Tasks complete | 11 |
| Tasks incomplete | 0 |

All task checklist items in `openspec/changes/slash-session-discoverability/tasks.md` are marked complete.

---

### Build & Tests Execution

**Build**: ➖ Skipped

Skipped intentionally because the verification request explicitly required focused verification commands only and said **do not build**.

**Tests**: ✅ Passed

Focused verification commands executed:

- `cargo test --manifest-path clients/agent-runtime/Cargo.toml default_registry_exposes_built_in_descriptors`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml dispatch_routes_session_root_help_with_empty_raw_args`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml dispatch_routes_session_status_as_raw_args_on_canonical_command`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml session_root_help_returns_discoverability_guidance_without_mutation`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml session_status_`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml session_rejects_invalid_subcommands_with_usage_guidance`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml ingress_classifies_in_scope_session_commands_through_shared_seam`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml ingress_classifies_session_status_through_shared_seam`
- `cargo test --manifest-path clients/agent-runtime/Cargo.toml ingress_keeps_unsupported_session_subcommands_inside_family_handler_boundary`

Observed passed verification tests (from tool output):

- `session_commands::registry::tests::default_registry_exposes_built_in_descriptors`
- `session_commands::registry::tests::dispatch_routes_session_root_help_with_empty_raw_args`
- `session_commands::registry::tests::dispatch_routes_session_status_as_raw_args_on_canonical_command`
- `session_commands::service::tests::session_root_help_returns_discoverability_guidance_without_mutation`
- `session_commands::service::tests::session_status_reports_active_current_session_and_recommends_compact`
- `session_commands::service::tests::session_status_recommends_suspend_when_compact_snapshot_exists`
- `session_commands::service::tests::session_status_reports_suspended_state_and_recommends_resume`
- `session_commands::service::tests::session_status_reports_unknown_current_session_without_inventing_state`
- `session_commands::service::tests::session_status_defaults_missing_state_to_active_and_recommends_compact`
- `session_commands::service::tests::session_status_requires_sqlite_backend_only_for_status_branch`
- `session_commands::service::tests::session_status_rejects_extra_tokens_after_supported_subcommand`
- `session_commands::service::tests::session_rejects_invalid_subcommands_with_usage_guidance`
- `pre_execution::tests::ingress_classifies_in_scope_session_commands_through_shared_seam`
- `pre_execution::tests::ingress_classifies_session_status_through_shared_seam`
- `pre_execution::tests::ingress_keeps_unsupported_session_subcommands_inside_family_handler_boundary`

**Coverage**: ➖ Not configured

---

### Spec Compliance Matrix

| Requirement | Scenario | Test | Result |
|-------------|----------|------|--------|
| Slash Session Discoverability Family Registration | Root help resolves through the canonical family command | `session_commands::registry::tests::dispatch_routes_session_root_help_with_empty_raw_args` | ✅ COMPLIANT |
| Slash Session Discoverability Family Registration | Status resolves as raw args of `/session` | `session_commands::registry::tests::dispatch_routes_session_status_as_raw_args_on_canonical_command` | ✅ COMPLIANT |
| Centralized Dispatch Through the Pre-Execution Seam | Supported `/session` family forms use the shared seam | `pre_execution::tests::ingress_classifies_in_scope_session_commands_through_shared_seam`, `pre_execution::tests::ingress_classifies_session_status_through_shared_seam` | ✅ COMPLIANT |
| Centralized Dispatch Through the Pre-Execution Seam | Unsupported `/session` subcommand stays inside the family handler boundary | `pre_execution::tests::ingress_keeps_unsupported_session_subcommands_inside_family_handler_boundary` | ✅ COMPLIANT |
| Session Discoverability Root Help | Root help returns discoverability guidance without mutation | `session_commands::service::tests::session_root_help_returns_discoverability_guidance_without_mutation` | ✅ COMPLIANT |
| Current Session Status Discoverability | Active current session without a compact snapshot recommends compact | `session_commands::service::tests::session_status_reports_active_current_session_and_recommends_compact` | ✅ COMPLIANT |
| Current Session Status Discoverability | Active current session with a compact snapshot recommends suspend | `session_commands::service::tests::session_status_recommends_suspend_when_compact_snapshot_exists` | ✅ COMPLIANT |
| Current Session Status Discoverability | Suspended current session recommends resume | `session_commands::service::tests::session_status_reports_suspended_state_and_recommends_resume` | ✅ COMPLIANT |
| Current Session Status Discoverability | Current session without authoritative state reports limited status | `session_commands::service::tests::session_status_reports_unknown_current_session_without_inventing_state` | ✅ COMPLIANT |

**Compliance summary**: 9/9 scenarios compliant

---

### Correctness (Static — Structural Evidence)
| Requirement | Status | Notes |
|------------|--------|-------|
| Slash Session Discoverability Family Registration | ✅ Implemented | `/session` is registered once in `registry.rs` with `OptionalText`, `SessionRead`, no aliases, and `registry.get("/session status").is_none()` is asserted by test. |
| Centralized Dispatch Through the Pre-Execution Seam | ✅ Implemented | `pre_execution::evaluate_ingress` still routes all recognized session-family commands through `default_registry().dispatch(...)`; no transport-local `/session` branch was introduced. |
| Session Discoverability Root Help | ✅ Implemented | `handle_session` returns `SessionCommandSuccessData::SessionHelp` for empty args and help text includes `/session status` plus adjacent lifecycle commands as related, not subcommands. |
| Current Session Status Discoverability | ✅ Implemented | `handle_session` accepts only raw args exactly equal to `status`; status view is assembled from `get_session` + `get_session_state_record`, defaults missing state to active, withholds invented data for unknown sessions, and carries a structured `SessionStatus` payload. |

---

### Coherence (Design)
| Decision | Followed? | Notes |
|----------|-----------|-------|
| Model `/session` as one canonical command with raw subcommand parsing in the service | ✅ Yes | Registry exposes only `/session`; service branches on trimmed raw args and rejects extra tokens like `status extra`. |
| Keep descriptor metadata command-level and evaluate `/session status` backend needs inside the service | ✅ Yes | Registry has no backend requirement for `/session`; `handle_session` calls `ensure_sqlite` only for the `status` branch. |
| Build a dedicated transport-neutral status payload instead of exposing raw persistence records | ✅ Yes | `SessionCommandSuccessData` gained `SessionHelp` and `SessionStatus`; `SessionCommandSessionStatus` is an internal structured shape rather than a raw record. |
| Implement `/session status` as a pure read-model assembly path with no lifecycle mutation helpers | ✅ Yes | `handle_session` uses `get_session` and `get_session_state_record` only; it does not call mutation helpers or write state/snapshots. |

---

### Scope Boundary Validation

- Verified changed runtime files for this change are limited to:
  - `clients/agent-runtime/src/session_commands/types.rs`
  - `clients/agent-runtime/src/session_commands/mod.rs`
  - `clients/agent-runtime/src/session_commands/registry.rs`
  - `clients/agent-runtime/src/session_commands/service.rs`
  - `clients/agent-runtime/src/pre_execution/mod.rs`
- No standalone canonical `/session status` command or alias was added.
- No lifecycle mutation path was added under `/session`; supported behavior remains root help plus `status` only.
- No transport-specific output branch was added; handled outcomes continue through the existing `SessionCommandSuccess` / `SessionCommandFailure` seam.
- No HTTP `/session/*` contract change was observed in the change scope.

---

### Issues Found

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

**WARNING** (should fix):
- Build/type-check verification was intentionally skipped per the explicit no-build instruction, so this report relies on focused static review plus targeted Rust test execution rather than a full compile/lint verification pass.
- The working tree contains unrelated concurrent changes outside `slash-session-discoverability`; archive/review should isolate this change carefully.

**SUGGESTION** (nice to have):
None.

---

### Verdict
PASS WITH WARNINGS

The `/session` discoverability slice matches the proposal, spec deltas, design, and completed tasks, and all focused runtime verification tests passed; only the explicitly skipped build step and unrelated workspace noise remain as non-blocking cautions.
