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MDA Compat Demo (Hermes Agent) · sno-ai | DecimalAI

Registry skillby sno-ai

MDA Compat Demo (Hermes Agent)

sno-ai/mda-compat-hermes

Source sno-ai/mda ↗License Apache-2.0

MDA compatibility demonstration skill for Hermes Agent. Compiled from compat/hermes/source.mda. Loading this skill confirms that an MDA-emitted SKILL.md is discovered, parsed, and listed by Hermes Agent under its `~/.hermes/skills/<category>/<name>/SKILL.md` layout.

SkillScore96Maintained

Automatic

QA & Test Engineering pack

Last verified 8/5/2026

What it changes

Passed 18 of 19 test cases with the skill, and 6 of 19 without it.

Without skill30%

With skill96%

Checks it passed that the model alone missed

Specifies SKILL.md as the target argument
Identifies the agentskills.io v1 envelope subset
Includes the integrity flag in the CLI compile invocation

and 19 more in the full report

16 fixed6 passed either way0 still failing1 broke

Pass-rate lift: +65 pp
Tokens: -49%
Agent turns: 0%
Response time: -73%

Model gemini-3.6-flashMeasured 8/5/2026v122 of 23 cases passed with skill · 19 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/sno-ai-mda-compat-hermes/SKILL.md https://app.decimal.ai/s/sno-ai-mda-compat-hermes/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add sno-ai-mda-compat-hermes, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/sno-ai-mda-compat-hermes/ and pins it in .decimal/skills.lock

decimalai skills add sno-ai-mda-compat-hermes

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/sno-ai-mda-compat-hermes/SKILL.md https://app.decimal.ai/s/sno-ai-mda-compat-hermes/SKILL.md

Raw file: /s/sno-ai-mda-compat-hermes/SKILL.md ↗ · machine-readable summary at /s/sno-ai-mda-compat-hermes.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

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

Provide the exact shell command line to execute the MDA compiler on the Hermes compatibility test file, producing a SKILL.md output with integrity metadata in the build directory.

What was checked, without and with the skill
Checked	Without skill	With skill
Outputs the complete command mda compile compat/hermes/source.mda --target SKILL.md --out-dir compat/hermes/build --integrity	Missed	Passed

case-17 · gemini-3.6-flash · 8/5/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md17 linessingle file

MDA Compat Demo (Hermes Agent)

This skill exists to verify Hermes Agent SKILL.md compatibility from an MDA-compiled output.

Three things are true if Hermes discovers and loads this skill:

The compiled SKILL.md parses under Hermes Agent's loader.
The frontmatter name matches the package directory name (spec §06-2.1).
The agentskills.io v1 envelope subset survives the round-trip from .mda source to compiled output to Hermes' skill registry; the reserved metadata.hermes.* namespace passes through verbatim for Hermes' own consumption.

Source: compat/hermes/source.mda. Compile: mda compile compat/hermes/source.mda --target SKILL.md --out-dir compat/hermes/build --integrity.

What this does NOT prove:

That Hermes parses MDA-extended frontmatter under metadata.mda.* (we do not require it).
That signatures or integrity digests are verified at load time (no current runtime does that).
That MDA v1.0 can author Hermes-specific top-level fields (version, author) that some existing Hermes skills carry at top level rather than under metadata.mda.*. Those are out of MDA v1.0 scope under §06-3.4, symmetric with the Claude Code runtime-fields gap.

Track record

Benchmark

18 / 19

test cases passed, vs 6 / 19 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/2/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

sno-ai / mda

compat/hermes/build/SKILL.md

View on GitHub ↗

License Apache-2.0Imported 8/2/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

MDA Compat Demo (Hermes Agent)

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

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