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Get Started Free →Test counter — codex skills e2e. The unique suffix b8d4e7 appears in the skill name so a string match in the agent's output proves codex loaded this skill.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-16 | ✗→✓ | ▲ Improved | -22% | 0% |
| case-09 | ✓→✓ | ＝ Same ✓ | -39% | 0% |
| case-01 | ✓→✓ | ＝ Same ✓ | -2% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | -20% | 0% |
| case-04 | ✓→✓ | ＝ Same ✓ | -56% | 0% |
This is a fixture skill for tests/e2e/test_codex_skills_filter_e2e.py. The skill body itself does not matter — the test asserts on whether the SKILL name (codex_e2e_xyz_count_b8d4e7) appears in the agent's enumerated-skills response.
Other measured skills in the registry, with their headline benchmark lift.