Role: test/oracle critic.

Objective: For candidate Harness Kit backlog tickets inspired by agent-legible source, human comprehension checkpoints, and agentic engineering workflows, identify executable oracles that would prevent vague "looks useful" tickets.

Scope:
- Read `skills/shape/references/executable-oracles.md`, active `backlog.d/*.md`, `scripts/check-agent-roster.py`, and any obvious eval/test directories under `skills/`.
- Do not edit files.
- Do not browse.

Output shape, max 700 words:
- 3-5 candidate tickets with concrete pass/fail oracle commands or fixture shapes.
- For each, name the acceptance artifact path that should exist.
- Flag any idea that cannot yet have an executable oracle.
- Recommended one ticket to ship first based on testability.

What not to touch:
- No code edits.
- No generated backlog files.
- No raw private transcript quoting.
