---
phase: 07-integration-and-end-to-end-validation
verified: 2026-02-23T16:54:26Z
status: passed
score: 9/9 must-haves verified
re_verification: false
---

# Phase 7: Integration and End-to-End Validation Verification Report

**Phase Goal:** The task-prompt bridge is wired into ServerCoreBuilder with a clean API, validated end-to-end, and demonstrated with a working example
**Verified:** 2026-02-23T16:54:26Z
**Status:** passed
**Re-verification:** No - initial verification

## Goal Achievement

### Observable Truths

The phase has two plan sets with their own must-haves. All truths are drawn from PLAN frontmatter.

#### Plan 07-01 Truths (Bug Fix + Integration Tests)

| # | Truth | Status | Evidence |
|---|-------|--------|---------|
| 1 | Task-enabled workflow prompt creates a task and returns _meta with task_id in GetPromptResult | VERIFIED | `test_task_workflow_creates_task_with_meta` passes; asserts `_meta.task_id` non-empty, `steps` len==3, all `completed` |
| 2 | Non-task workflow registered on same server returns standard GetPromptResult with _meta: None | VERIFIED | `test_backward_compatibility_non_task_workflow` passes; asserts `has_meta == false` |
| 3 | Full lifecycle (create-execute-handoff-continue-complete) works through ServerCore::handle_request | VERIFIED | `test_full_lifecycle_happy_path` passes all 5 lifecycle stages (GetPrompt, tasks/result error on working, cancel-with-result, tasks/result success, direct store check) |
| 4 | Step failure produces a handoff with error details and retry guidance | VERIFIED | Test asserts `pause_reason.type == "toolError"`, `failedStep == "fetch"`, `retryable == true`, and last message contains "To continue the workflow" |
| 5 | Cancel-with-result transitions a workflow task to Completed | VERIFIED | `test_cancel_with_result` passes; asserts `cancel_result.status == "completed"`, stored result matches payload, direct store access confirms `TaskStatus::Completed` |

#### Plan 07-02 Truths (Lifecycle Example)

| # | Truth | Status | Evidence |
|---|-------|--------|---------|
| 6 | cargo run --example 62_task_workflow_lifecycle compiles and runs successfully | VERIFIED | Ran to completion; prints all 5 stage headers with meaningful data |
| 7 | Example output shows full lifecycle: workflow invocation, handoff with completed/remaining steps, client continuation, task completion | VERIFIED | Output shows task_id, step statuses (fetch:failed, transform:pending, store:pending), continuation with _task_id, cancel-with-result -> completed, tasks/result poll |
| 8 | Example prints full message list from handoff (user intent, assistant plan, tool call/result, handoff narrative) | VERIFIED | Output shows 5 messages: USER intent, ASSISTANT plan, ASSISTANT tool call, USER tool error, ASSISTANT handoff with continuation guidance |
| 9 | Each lifecycle stage clearly commented with Stage N labels | VERIFIED | Example contains `--- Stage 1:` through `--- Stage 5:` with block comments in source |

**Score:** 9/9 truths verified

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `src/server/workflow/task_prompt_handler.rs` | Fixed task_id extraction from CreateTaskResult JSON | VERIFIED | Contains `get("task").and_then(\|t\| t.get("taskId"))` at line 634-637; old `get("id")` pattern absent |
| `crates/pmcp-tasks/tests/workflow_integration.rs` | Integration tests for builder API, backward compatibility, full lifecycle (min 150 lines) | VERIFIED | 677 lines; 6 tests all passing |
| `examples/62_task_workflow_lifecycle.rs` | Complete lifecycle example (min 150 lines, contains `fn main()`) | VERIFIED | 469 lines; `fn main()` at line 146; runs to completion |

### Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| `crates/pmcp-tasks/tests/workflow_integration.rs` | `src/server/workflow/task_prompt_handler.rs` | `ServerCore::handle_request` dispatching GetPrompt | WIRED | Tests call `server.handle_request(RequestId::from(1i64), get_prompt_req, None)` and assert on `_meta` from TaskWorkflowPromptHandler; 6 tests all pass |
| `crates/pmcp-tasks/tests/workflow_integration.rs` | `crates/pmcp-tasks/src/router.rs` | `TaskRouterImpl` wired through `ServerCoreBuilder::with_task_store` | WIRED | `build_test_server()` calls `.with_task_store(router)` where `router = Arc::new(TaskRouterImpl::new(store))` |
| `examples/62_task_workflow_lifecycle.rs` | `src/server/workflow/task_prompt_handler.rs` | `ServerCore::handle_request` dispatching GetPrompt through TaskWorkflowPromptHandler | WIRED | Example calls `server.handle_request(RequestId::from(1i64), get_prompt_req, None)` and receives `_meta` with task_id |
| `examples/62_task_workflow_lifecycle.rs` | `src/server/core.rs` | Fire-and-forget continuation intercept on CallTool with _task_id | WIRED | Stage 4 sends `CallTool` with `_meta: Some(RequestMeta { _task_id: Some(task_id.to_string()) })` through `handle_request` |

### Requirements Coverage

| Requirement | Source Plan | Description | Status | Evidence |
|-------------|------------|-------------|--------|---------|
| INTG-01 | 07-01 | ServerCoreBuilder provides API to register task-aware workflow prompts | SATISFIED | `builder.rs` exposes `with_task_store()` + `prompt_workflow()` API; `test_task_workflow_creates_task_with_meta` validates wiring end-to-end |
| INTG-02 | 07-01 | Existing non-task workflows continue to work unchanged | SATISFIED | `test_backward_compatibility_non_task_workflow` and `test_both_workflows_coexist` prove non-task workflows return standard `GetPromptResult` with no `_meta` |
| INTG-03 | 07-02 | Working example demonstrates complete task-prompt bridge lifecycle | SATISFIED | `examples/62_task_workflow_lifecycle.rs` (469 lines) runs to completion showing all 5 stages; old `62_task_workflow_opt_in.rs` correctly removed |
| INTG-04 | 07-01 | Integration tests validate create-execute-handoff-continue-complete flow through real ServerCore | SATISFIED | `test_full_lifecycle_happy_path` and `test_cancel_with_result` validate full lifecycle through `ServerCore::handle_request` with `InMemoryTaskStore` |

No orphaned requirements - all 4 INTG IDs declared in plans are accounted for and satisfied.

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| `crates/pmcp-tasks/src/router.rs` | 554 | `get("progress_token").is_none()` - clippy `unnecessary_get_then_check` | INFO | Pre-existing from Phase 04 commit `daf66aa`; not modified in Phase 07; does not affect functionality or correctness |

No blocker or warning anti-patterns found in Phase 07 files. The `placeholder` references in `task_prompt_handler.rs` are legitimate function names (`build_placeholder_args`) for generating handoff guidance text, not stub implementations.

### Regression Check

| Test Suite | Count | Status |
|------------|-------|--------|
| `workflow_integration` (Phase 07 new tests) | 6/6 | All pass |
| `lifecycle_integration` (Phase 06, regression check) | 11/11 | All pass |
| `cargo run --example 62_task_workflow_lifecycle` | - | Runs to completion |
| `cargo clippy --lib -- -D warnings` | - | Zero warnings |
| `cargo clippy --example 62_task_workflow_lifecycle -- -D warnings` | - | Zero warnings |

### Commit Verification

All commits documented in SUMMARYs are verified to exist in git history:

| Commit | Plan | Description |
|--------|------|-------------|
| `046d51d` | 07-01 Task 1 | `fix(07-01): correct task_id extraction from CreateTaskResult JSON` - modifies `task_prompt_handler.rs` |
| `e605840` | 07-01 Task 2 | `feat(07-01): add workflow integration tests for task-prompt bridge` - creates `workflow_integration.rs` (677 lines) |
| `40b9455` | 07-02 Task 1 | `feat(07-02): add complete task-prompt bridge lifecycle example` - creates `62_task_workflow_lifecycle.rs`, deletes `62_task_workflow_opt_in.rs` |

### Human Verification Required

None. All must-haves are verifiable programmatically. Tests run, example runs, output is inspectable. No visual UI, real-time behavior, or external service integration involved.

## Verification Summary

Phase 7 goal is fully achieved. Every component is substantive, wired, and tested:

1. **Bug fix verified:** The critical task_id extraction bug (`value.get("id")` -> `value.get("task").and_then(|t| t.get("taskId"))`) is in place at `task_prompt_handler.rs` line 633-637. Without this fix, every task-aware workflow would fall through to graceful degradation and return no `_meta`. With the fix, the test `test_task_workflow_creates_task_with_meta` confirms `_meta.task_id` is non-empty.

2. **Integration tests verified:** 677-line `workflow_integration.rs` with 6 tests all passing. Tests exercise `ServerCore::handle_request` end-to-end using real `InMemoryTaskStore` and `TaskRouterImpl`. INTG-01, INTG-02, and INTG-04 are all covered with concrete assertions.

3. **Lifecycle example verified:** 469-line `examples/62_task_workflow_lifecycle.rs` compiles and runs, printing all 5 lifecycle stages with a real task ID, real step statuses, 5 handoff messages, and confirmed `completed` final state. The old `62_task_workflow_opt_in.rs` is removed.

4. **Pre-existing clippy issue noted:** `router.rs:554` has a `unnecessary_get_then_check` warning that predates Phase 07 (introduced in Phase 04, commit `daf66aa`). Phase 07 did not modify `router.rs`. This does not affect Phase 07 quality — `cargo clippy --lib` and `cargo clippy --example 62_task_workflow_lifecycle` pass clean.

---
_Verified: 2026-02-23T16:54:26Z_
_Verifier: Claude (gsd-verifier)_
