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Evolver — measured AI agent skill | DecimalAI

stijnman/evolver

SkillScore87Maintained

Lightweight skill mutation helper for quick iterations. Use for small skill tweaks or user says quick evolve, mutate skill. Use when the user needs this capability. Triggers: quick evolve, mutate skill, tweak skill.

by stijnman

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

Doc Ops pack

decimalai skills pull stijnman-evolver

Get this skill — curl · raw file

curl -fsSL https://app.decimal.ai/s/stijnman-evolver/SKILL.md

Raw file: /s/stijnman-evolver/SKILL.md ↗ · machine-readable summary at /s/stijnman-evolver.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

23 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 7d ago

Yes — +61% lift-51% tokens0% turns87% of whole cases pass with skill (20/23)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-01	✗→✓	▲ Improved	-34%	0%
case-02	✗→✓	▲ Improved	2%	0%
case-03	✗→✓	▲ Improved	-9%	0%
case-04	✗→✓	▲ Improved	-53%	0%
case-05	✗→✓	▲ Improved	-47%	0%

Showing 5 of 23 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/1/2026

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

stijnman / grok-custom-skills

.grok/skills/evolver/SKILL.md

View on GitHub ↗

License MITImported 8/1/2026Version v1

Skill contents

SKILL.md

Evolver

When to Use

User says quick evolve or task matches this capability
User says mutate skill or task matches this capability
User says tweak skill or task matches this capability

Workflow

Load target SKILL.md.
Apply single targeted edit (description, workflow step, error row).
Validate frontmatter; save.
Notify skill-evolution-engine of change.

Integrations

skill-evolver
evolution
hyper-skill-tester

Error Handling

| Failure | Response | |---------|----------| | Invalid frontmatter | Restore from git or versions/ backup. |

Gotchas

Prefer skill-evolver for major rewrites.

Example

Input: User request matching triggers above. Output: Structured result per workflow with integrations invoked as needed.

Want to see if stijnman/evolver would activate on your phrasing? Try it before you install — no LLM call, no signup.

Other measured skills in the registry, with their headline benchmark lift.