Use when creating Codex, Claude Code, Gemini CLI, Cursor, or AGENTS.md runtime adapters from one canonical agent core. Use whenever a generated repo needs multiple AI runtimes without duplicating instructions.
SkillScore91Maintained
Automatic
◆AI Engineer pack
Last verified 8/15/2026
What it changes
Passed 19 of 21 test cases with the skill, and 8 of 21 without it.
Without skill39%
With skill91%
Checks it passed that the model alone missed
Documents the command alias in root AGENTS.md.
Places the adapter files under .claude/commands/.
States that adapter text must point back to AGENTS.md.
and 11 more in the full report
12 fixed9 passed either way2 still failing0 broke
Pass-rate lift
+52 pp
Tokens
-57%
Agent turns
0%
Response time
-65%
Model gemini-3.6-flashMeasured 8/15/2026v121 of 23 cases passed with skill · 21 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 12
Prompt
Besides the `.gemini/commands/<slug>.toml` command adapter file, what root/top-level file is required for Gemini CLI runtime support?
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies GEMINI.md as a required file for Gemini CLI runtime support.
Missed
Passed
case-11 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md18 linessingle file
Runtime Adapters
Rules
AGENTS.md is canonical.
.claude/, .codex/, .gemini/, .cursor/, and root skills/ are thin
adapters or mirrors.
.agentlas/global-commands.json records the command each adapter exposes.
Adapter text should point back to AGENTS.md.
Do not claim identical behavior across runtimes. Say the canonical core is
portable and each adapter maps it into local conventions.
Required Adapters
Codex: plugin manifest plus skill and commands/<slug>.md.
Claude Code: command, agent, and skill adapter under .claude/commands/.
Gemini CLI: GEMINI.md plus .gemini/commands/<slug>.toml.
Generic: root AGENTS.md with the command alias documented.
Use when generating or auditing a multi-role agent team package with orchestrator, PM Soul, Memory Curator, Policy Gate, workers, eval, QA, handoffs, and runtime adapters.