Loading skill
Install any skill in seconds. Free to start, no credit card required.
Get Started Free →MDA compatibility demonstration skill for Codex CLI. Compiled from compat/codex-cli/source.mda. Loading this skill confirms that an MDA-emitted SKILL.md is discovered and parsed by Codex CLI with the envelope subset of agentskills.io v1 fields honored.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-02 | ✗→✓ | ▲ Improved | -45% | 0% |
| case-03 | ✗→✓ | ▲ Improved | -30% | 0% |
| case-05 | ✗→✓ | ▲ Improved | -62% | 0% |
| case-07 | ✗→✓ | ▲ Improved | -43% | 0% |
| case-13 | ✗→✓ | ▲ Improved | -71% | 0% |
This skill exists to verify Codex CLI SKILL.md compatibility from an MDA-compiled output.
Three things are true if Codex CLI discovers and loads this skill:
SKILL.md parses under Codex CLI's loader (built on agentskills.io v1).name matches the package directory name (spec §06-2.1).name, description, allowed-tools) survives the round-trip from .mda source to compiled output to runtime ingest.Source: compat/codex-cli/source.mda. Compile: mda compile compat/codex-cli/source.mda --target SKILL.md --out-dir compat/codex-cli/build --integrity.
What this does NOT prove:
metadata.mda.* (the OpenAI docs do not document any such behavior, and we do not require it).triggers: arrays) are authored from MDA — they are not part of agentskills.io v1 and are out of MDA v1.0 scope.Other measured skills in the registry, with their headline benchmark lift.