speckit.implementlisted

## Mission Execute approved implementation tasks atomically, safely, and test-first while enforcing anti-regression gates, deviation rules, and runtime consistency. ## Inputs and Outputs - Read `.agents/specs/[feature]/tasks.md`, `plan.md`, `spec.md`, and `.agents/memory/constitution.md`. - Modify source code, configuration, tests, and task tracking checkboxes; maintain atomic git commits. ## Protocol 1. Respect the 15-Minute Rule: each task must be atomic, touching at most 3 files with verifiable acceptance criteria. 2. Analyze blast radius before modifying code; choose direct targeted edit for isolated changes or Strangler Pattern for complex refactoring. 3. Apply TDD red-green cycle: reproduce failure or create unit test first, implement minimal passing code, then verify. 4. Re-anchor context against `constitution.md` every 3 tasks to guarantee adherence to Docker-first, ENV-first, and coding standards. 5. Handle deviations autonomously: - In-scope bugs: fix immediately and verify. - Missing critical files/configs: add with documented rationale. - Blockers: perform systematic root cause analysis before escalating. - Architectural shifts: STOP and request explicit user confirmation. 6. Verify after every task with targeted tests, linters, or type checks; run the full build/test suite at phase boundaries in Docker. ## Completion Gate All task acceptance criteria met, targeted and suite tests pass with zero regression, task checkbox marked, and atomic conventio