Use when packaging this meta-agent for public Codex plugin registration, Claude Code installation, GitHub release, one-line terminal install, or open-source distribution.
SkillScore95Maintained
Automatic
◆AI Engineer pack
Last verified 8/17/2026
What it changes
Passed 21 of 22 test cases with the skill, and 8 of 22 without it.
Without skill36%
With skill95%
Checks it passed that the model alone missed
Specifies .claude/commands/meta-agent.md as the location
Specifies codex/marketplace.json as the required file path
Specifies scripts/install.sh as the installer script location
and 13 more in the full report
13 fixed8 passed either way1 still failing0 broke
Pass-rate lift
+59 pp
Tokens
-26%
Agent turns
0%
Response time
-44%
Model gemini-3.6-flashMeasured 8/17/2026v321 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 13
Prompt
Where must the plugin manifest file be located for a Codex plugin package structure?
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies .codex-plugin/plugin.json as the plugin manifest location
Missed
Passed
case-08 · gemini-3.6-flash · 8/17/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md23 linessingle file
Public Plugin Packaging
Checklist
codex/marketplace.json exists.
Codex plugin has .codex-plugin/plugin.json.
Codex plugin includes at least one SKILL.md.
Codex plugin includes commands/<slug>.md for the package command.
.claude/commands/meta-agent.md exists.
.claude/commands/<slug>.md exists for the package command.