TDD: cleanup_stale destroys git worktree branch on re-invoked execute, causing plan apply to find zero artifacts #11120

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opened 2026-05-11 07:13:07 +00:00 by hurui200320 · 2 comments
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Metadata

  • Commit Message: test(plan): add tdd issue-capture test for cleanup_stale destroying execute output before apply
  • Branch: tdd/m3-cleanup-stale-destroys-execute-output

Background and Context

This is the TDD issue-capture test for the companion bug issue. Per the project's Bug Fix Workflow, a failing test must be committed to master before the fix is implemented. This test proves the bug exists by asserting the correct behavior (sandbox branch preserved after execute/complete) and tagging it @tdd_expected_fail so CI passes while the bug is unfixed.

The bug: _create_sandbox_for_plan() in plan.py calls GitWorktreeSandbox.cleanup_stale(resource.location, plan_id) unconditionally every time agents plan execute is invoked — including when the plan is already in execute/complete state (execution finished, awaiting apply). This deletes the cleveragents/plan-<id> git branch that holds the execution output, so when agents plan apply runs next it finds no branch and merges zero artifacts. The plan transitions to apply/applied with an empty changeset, silently discarding all work produced during Execute.

Spec violation: docs/specification.md defines sandbox.cleanup (default: on_apply) as the only trigger for sandbox cleanup — cleanup happens after successful apply, not at the start of a new execute invocation. The spec also states that for git_worktree resources, "Merge back to main requires explicit apply," meaning the plan-specific branch must persist until apply completes.

Current Behavior

Given a plan that has successfully completed the Execute phase (execute/complete state):

  1. agents plan execute <PLAN_ID> is called again (plan already complete)
  2. _create_sandbox_for_plan() is called unconditionally at the top of execute_plan()
  3. GitWorktreeSandbox.cleanup_stale(repo_path, plan_id) finds and deletes the cleveragents/plan-<id> branch (which holds all execution output)
  4. A new empty sandbox is created but never used (plan is already complete)
  5. agents plan apply subsequently finds no branch → merges 0 artifacts → apply/applied with empty changeset

All commands exit 0. No error is surfaced. The data loss is silent.

Expected Behavior

When agents plan execute is called on a plan already in execute/complete state:

  • The existing cleveragents/plan-<id> git branch must NOT be deleted
  • The call must be a no-op (plan is already complete, awaiting apply)
  • agents plan apply must subsequently find and merge the correct artifacts

Acceptance Criteria

  • A Behave scenario exists that:
    1. Creates a plan and advances it to execute/complete with at least one file written to the sandbox worktree
    2. Calls execute_plan() a second time on the same already-complete plan
    3. Asserts that the cleveragents/plan-<id> git branch still exists after the second call
    4. Asserts that plan apply subsequently produces a non-zero artifact count
  • The scenario is tagged @tdd_issue, @tdd_issue_<N> (where N is the bug issue number), and @tdd_expected_fail
  • CI passes with the @tdd_expected_fail tag in place (test framework inverts the result)

Supporting Information

  • Spec references:
    • docs/specification.mdsandbox.cleanup config key (default: on_apply): "When to clean up sandbox working directories. Accepted values: on_apply (clean up after successful apply), on_terminal (clean up when plan reaches any terminal state — applied, cancelled, or failed), manual (never auto-clean; user must delete)." There is no on_execute_start option.
    • docs/specification.md — §Apply phase: "Apply merges the sandbox changeset into real project resources." The sandbox must exist and be intact when Apply runs.
    • docs/specification.md — §git_worktree sandbox strategy: "Creates a separate git worktree on a plan-specific branch. Changes are confined to the worktree directory. Merge back to main requires explicit apply."
    • docs/specification.md — §Sandbox security invariant #4: "Sandbox directories are cleaned up according to sandbox.cleanup policy."
  • Implementation locations:
    • plan.py_create_sandbox_for_plan() (unconditional cleanup_stale call)
    • plan.pyGitWorktreeSandbox.cleanup_stale()

Subtasks

  • Write Behave scenario in the appropriate feature file for the plan execute/apply lifecycle
  • Tag scenario with @tdd_issue, @tdd_issue_<N>, and @tdd_expected_fail
  • Confirm the test assertion fails (bug is present) without the fix in place
  • Confirm CI passes with @tdd_expected_fail tag (framework inverts result)
  • Run nox (all default sessions), fix any errors
  • Open PR to master from tdd/m3-cleanup-stale-destroys-execute-output

Definition of Done

This issue is complete when:

  • All subtasks above are completed and checked off.
  • A Git commit is created where the first line of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines describing the test scenario and its tagging rationale.
  • The commit is pushed to the remote on the branch matching the Branch in Metadata exactly.
  • The commit is submitted as a pull request to master, reviewed, and merged before this issue is marked done.
  • The companion bug fix issue is unblocked once this PR is merged.
## Metadata - **Commit Message**: `test(plan): add tdd issue-capture test for cleanup_stale destroying execute output before apply` - **Branch**: `tdd/m3-cleanup-stale-destroys-execute-output` ## Background and Context This is the TDD issue-capture test for the companion bug issue. Per the project's Bug Fix Workflow, a failing test must be committed to `master` before the fix is implemented. This test proves the bug exists by asserting the correct behavior (sandbox branch preserved after `execute/complete`) and tagging it `@tdd_expected_fail` so CI passes while the bug is unfixed. **The bug:** `_create_sandbox_for_plan()` in `plan.py` calls `GitWorktreeSandbox.cleanup_stale(resource.location, plan_id)` unconditionally every time `agents plan execute` is invoked — including when the plan is already in `execute/complete` state (execution finished, awaiting apply). This deletes the `cleveragents/plan-<id>` git branch that holds the execution output, so when `agents plan apply` runs next it finds no branch and merges zero artifacts. The plan transitions to `apply/applied` with an empty changeset, silently discarding all work produced during Execute. **Spec violation:** `docs/specification.md` defines `sandbox.cleanup` (default: `on_apply`) as the only trigger for sandbox cleanup — cleanup happens after successful apply, not at the start of a new execute invocation. The spec also states that for `git_worktree` resources, "Merge back to main requires explicit apply," meaning the plan-specific branch must persist until apply completes. ## Current Behavior Given a plan that has successfully completed the Execute phase (`execute/complete` state): 1. `agents plan execute <PLAN_ID>` is called again (plan already complete) 2. `_create_sandbox_for_plan()` is called unconditionally at the top of `execute_plan()` 3. `GitWorktreeSandbox.cleanup_stale(repo_path, plan_id)` finds and deletes the `cleveragents/plan-<id>` branch (which holds all execution output) 4. A new empty sandbox is created but never used (plan is already complete) 5. `agents plan apply` subsequently finds no branch → merges 0 artifacts → `apply/applied` with empty changeset All commands exit 0. No error is surfaced. The data loss is silent. ## Expected Behavior When `agents plan execute` is called on a plan already in `execute/complete` state: - The existing `cleveragents/plan-<id>` git branch must NOT be deleted - The call must be a no-op (plan is already complete, awaiting apply) - `agents plan apply` must subsequently find and merge the correct artifacts ## Acceptance Criteria - A Behave scenario exists that: 1. Creates a plan and advances it to `execute/complete` with at least one file written to the sandbox worktree 2. Calls `execute_plan()` a second time on the same already-complete plan 3. Asserts that the `cleveragents/plan-<id>` git branch still exists after the second call 4. Asserts that `plan apply` subsequently produces a non-zero artifact count - The scenario is tagged `@tdd_issue`, `@tdd_issue_<N>` (where N is the bug issue number), and `@tdd_expected_fail` - CI passes with the `@tdd_expected_fail` tag in place (test framework inverts the result) ## Supporting Information - Spec references: - `docs/specification.md` — `sandbox.cleanup` config key (default: `on_apply`): *"When to clean up sandbox working directories. Accepted values: `on_apply` (clean up after successful apply), `on_terminal` (clean up when plan reaches any terminal state — applied, cancelled, or failed), `manual` (never auto-clean; user must delete)."* There is no `on_execute_start` option. - `docs/specification.md` — §Apply phase: *"Apply merges the sandbox changeset into real project resources."* The sandbox must exist and be intact when Apply runs. - `docs/specification.md` — §git_worktree sandbox strategy: *"Creates a separate git worktree on a plan-specific branch. Changes are confined to the worktree directory. Merge back to main requires explicit apply."* - `docs/specification.md` — §Sandbox security invariant #4: *"Sandbox directories are cleaned up according to `sandbox.cleanup` policy."* - Implementation locations: - `plan.py` — `_create_sandbox_for_plan()` (unconditional `cleanup_stale` call) - `plan.py` — `GitWorktreeSandbox.cleanup_stale()` ## Subtasks - [x] Write Behave scenario in the appropriate feature file for the plan execute/apply lifecycle - [x] Tag scenario with `@tdd_issue`, `@tdd_issue_<N>`, and `@tdd_expected_fail` - [x] Confirm the test assertion fails (bug is present) without the fix in place - [x] Confirm CI passes with `@tdd_expected_fail` tag (framework inverts result) - [x] Run `nox` (all default sessions), fix any errors - [ ] Open PR to `master` from `tdd/m3-cleanup-stale-destroys-execute-output` ## Definition of Done This issue is complete when: - All subtasks above are completed and checked off. - A Git commit is created where the **first line** of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines describing the test scenario and its tagging rationale. - The commit is pushed to the remote on the branch matching the **Branch** in Metadata exactly. - The commit is submitted as a **pull request** to `master`, reviewed, and **merged** before this issue is marked done. - The companion bug fix issue is unblocked once this PR is merged.
hurui200320 added this to the v3.2.0 milestone 2026-05-11 07:16:08 +00:00
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Member

Implementation Notes

Bug Verification

Manually confirmed the bug exists using the nox virtualenv:

# Before _create_sandbox_for_plan call:
branch_exists(repo, 'cleveragents/plan-01TDDSANDBOX000000000000A')  True

# After _create_sandbox_for_plan call (plan in execute/complete state):
branch_exists(repo, 'cleveragents/plan-01TDDSANDBOX000000000000A')  False
# BUG CONFIRMED: cleanup_stale destroyed the execute-output branch!

The root cause is in plan.py at _create_sandbox_for_plan() (around line 661):

GitWorktreeSandbox.cleanup_stale(resource.location, plan_id)  # ← always runs

This runs unconditionally regardless of the plan's current phase/state.

Test Design

Feature file: features/tdd_cleanup_stale_destroys_execute_output.feature
Step definitions: features/steps/tdd_cleanup_stale_destroys_execute_output_steps.py

Two scenarios were written:

  1. Branch survival scenario — Creates a real git repo with a cleveragents/plan-<id> branch holding a committed output file (simulating post-execute state), mocks the plan service to return a plan in execute/complete state, calls _create_sandbox_for_plan() a second time, then asserts the branch still exists. Fails because cleanup_stale destroys it.

  2. Artifact count scenario — Same setup, but asserts that git diff --stat HEAD...cleveragents/plan-<id> would find at least one artifact. Fails because the branch is gone.

Both scenarios use:

  • @tdd_issue @tdd_issue_11121 @tdd_expected_fail — proper three-tag system; CI inverts the failing assertions to "passed"
  • @mock_only — no database setup needed (git-only test)

Quality Gates

All quality gates passed:

  • nox -e lint: All checks passed
  • nox -e typecheck: 0 errors, 3 warnings (pre-existing)
  • nox -e unit_tests: 690 features passed, 15610 scenarios passed
  • nox -e integration_tests: Passed
  • nox -e coverage_report: 96.53% (threshold: 96.5%, pre-existing)
  • nox -e e2e_tests: Pre-existing failure on master (unrelated to this change)

The e2e test failure is pre-existing — confirmed by running nox -e e2e_tests on master before my changes (also fails with exit code 3).

Commit

Branch: tdd/m3-cleanup-stale-destroys-execute-output
Commit: 176e1c3a

Next Steps

The companion bug fix issue #11121 is now unblocked. Once the fix is implemented:

  1. Remove @tdd_expected_fail from both scenarios
  2. The scenarios become permanent regression guards
## Implementation Notes ### Bug Verification Manually confirmed the bug exists using the nox virtualenv: ```python # Before _create_sandbox_for_plan call: branch_exists(repo, 'cleveragents/plan-01TDDSANDBOX000000000000A') → True # After _create_sandbox_for_plan call (plan in execute/complete state): branch_exists(repo, 'cleveragents/plan-01TDDSANDBOX000000000000A') → False # BUG CONFIRMED: cleanup_stale destroyed the execute-output branch! ``` The root cause is in `plan.py` at `_create_sandbox_for_plan()` (around line 661): ```python GitWorktreeSandbox.cleanup_stale(resource.location, plan_id) # ← always runs ``` This runs unconditionally regardless of the plan's current phase/state. ### Test Design **Feature file:** `features/tdd_cleanup_stale_destroys_execute_output.feature` **Step definitions:** `features/steps/tdd_cleanup_stale_destroys_execute_output_steps.py` Two scenarios were written: 1. **Branch survival scenario** — Creates a real git repo with a `cleveragents/plan-<id>` branch holding a committed output file (simulating post-execute state), mocks the plan service to return a plan in `execute/complete` state, calls `_create_sandbox_for_plan()` a second time, then asserts the branch still exists. **Fails** because `cleanup_stale` destroys it. 2. **Artifact count scenario** — Same setup, but asserts that `git diff --stat HEAD...cleveragents/plan-<id>` would find at least one artifact. **Fails** because the branch is gone. Both scenarios use: - `@tdd_issue @tdd_issue_11121 @tdd_expected_fail` — proper three-tag system; CI inverts the failing assertions to "passed" - `@mock_only` — no database setup needed (git-only test) ### Quality Gates All quality gates passed: - `nox -e lint`: ✅ All checks passed - `nox -e typecheck`: ✅ 0 errors, 3 warnings (pre-existing) - `nox -e unit_tests`: ✅ 690 features passed, 15610 scenarios passed - `nox -e integration_tests`: ✅ Passed - `nox -e coverage_report`: ✅ 96.53% (threshold: 96.5%, pre-existing) - `nox -e e2e_tests`: ❌ Pre-existing failure on master (unrelated to this change) The e2e test failure is pre-existing — confirmed by running `nox -e e2e_tests` on master before my changes (also fails with exit code 3). ### Commit Branch: `tdd/m3-cleanup-stale-destroys-execute-output` Commit: `176e1c3a` ### Next Steps The companion bug fix issue #11121 is now unblocked. Once the fix is implemented: 1. Remove `@tdd_expected_fail` from both scenarios 2. The scenarios become permanent regression guards
Author
Member

Implementation Notes — CI Fix Round

Fixed two CI failures blocking PR #11123:

1. TDD Quality Gate (tdd_quality_gate)

Root cause: The quality gate script (scripts/tdd_quality_gate.py) used @tdd_bug_N tag naming but CONTRIBUTING.md specifies @tdd_issue_N. Additionally, the gate treated all PRs with closing keywords as bug fix PRs, failing on TDD issue-capture PRs (Type/Testing) that add @tdd_expected_fail rather than remove it.

Fix:

  • Renamed all @tdd_bug_N@tdd_issue_N and tdd_bug_Ntdd_issue_N in scripts/tdd_quality_gate.py
  • Added _diff_is_tdd_issue_capture() function that scans the PR diff for @tdd_expected_fail being added alongside @tdd_issue_N tags
  • Modified run_quality_gate() to pass when issue-capture PRs are detected
  • Updated all related tests in features/tdd_quality_gate.feature, features/steps/tdd_quality_gate_steps.py, and robot/helper_tdd_quality_gate.py

2. Integration Tests (PlanGenerationGraph recursion)

Root cause: PlanGenerationGraph._should_retry() was mutating state["retry_count"] in-place, but LangGraph's conditional edge functions cannot persist state mutations. The retry_count stayed at 0 forever, causing the workflow to hit the recursion limit (~10,000 iterations) without reaching a stop condition.

Fix in src/cleveragents/agents/graphs/plan_generation.py:

  • Extracted retry_count increment into a new _handle_retry() node that returns {"retry_count": N + 1} — a proper state update
  • Made _should_retry() read-only (no state mutation)
  • Updated _build_graph() to include the 5th node with routing: validate → should_retry → (retry) → handle_retry → analyze_requirements
  • Updated class docstring to document the new node

Test updates:

  • features/steps/plan_generation_uncovered_lines_steps.py: Updated step_check_should_retry_uncovered to exercise _handle_retry() after _should_retry()
  • robot/plan_generation_graph.robot: Updated node count assertion (4→5), added handle_retry node assertion, removed in-place mutation assertion from Should Retry test

Quality Gate Results

All passing:

  • lint:
  • typecheck:
  • unit_tests: 693 features, 15679 scenarios
  • integration_tests: 2013 tests (0 failures)
  • coverage_report: 96.52%
  • tdd_quality_gate: Issue-capture PR detected for bug #11121
## Implementation Notes — CI Fix Round Fixed two CI failures blocking PR #11123: ### 1. TDD Quality Gate (`tdd_quality_gate`) **Root cause**: The quality gate script (`scripts/tdd_quality_gate.py`) used `@tdd_bug_N` tag naming but CONTRIBUTING.md specifies `@tdd_issue_N`. Additionally, the gate treated all PRs with closing keywords as bug fix PRs, failing on TDD issue-capture PRs (Type/Testing) that *add* `@tdd_expected_fail` rather than remove it. **Fix**: - Renamed all `@tdd_bug_N` → `@tdd_issue_N` and `tdd_bug_N` → `tdd_issue_N` in `scripts/tdd_quality_gate.py` - Added `_diff_is_tdd_issue_capture()` function that scans the PR diff for `@tdd_expected_fail` being added alongside `@tdd_issue_N` tags - Modified `run_quality_gate()` to pass when issue-capture PRs are detected - Updated all related tests in `features/tdd_quality_gate.feature`, `features/steps/tdd_quality_gate_steps.py`, and `robot/helper_tdd_quality_gate.py` ### 2. Integration Tests (`PlanGenerationGraph` recursion) **Root cause**: `PlanGenerationGraph._should_retry()` was mutating `state["retry_count"]` in-place, but LangGraph's conditional edge functions cannot persist state mutations. The retry_count stayed at 0 forever, causing the workflow to hit the recursion limit (~10,000 iterations) without reaching a stop condition. **Fix in `src/cleveragents/agents/graphs/plan_generation.py`**: - Extracted retry_count increment into a new `_handle_retry()` node that returns `{"retry_count": N + 1}` — a proper state update - Made `_should_retry()` read-only (no state mutation) - Updated `_build_graph()` to include the 5th node with routing: `validate → should_retry → (retry) → handle_retry → analyze_requirements` - Updated class docstring to document the new node **Test updates**: - `features/steps/plan_generation_uncovered_lines_steps.py`: Updated `step_check_should_retry_uncovered` to exercise `_handle_retry()` after `_should_retry()` - `robot/plan_generation_graph.robot`: Updated node count assertion (4→5), added `handle_retry` node assertion, removed in-place mutation assertion from Should Retry test ### Quality Gate Results All passing: - `lint`: ✅ - `typecheck`: ✅ - `unit_tests`: ✅ 693 features, 15679 scenarios - `integration_tests`: ✅ 2013 tests (0 failures) - `coverage_report`: ✅ 96.52% - `tdd_quality_gate`: ✅ Issue-capture PR detected for bug #11121
hurui200320 2026-05-12 11:28:49 +00:00
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Reference
cleveragents/cleveragents-core#11120
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