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Gemini CLI — measured AI agent skill | DecimalAI

understudy-ai/gemini

NewSkillScoreMaintained

Gemini CLI for one-shot Q&A, summaries, and generation.

AI/MLby understudy-ai

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

Automatic

AI Engineer pack

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

pip install decimalai

2 · Get the skill — writes .claude/skills/understudy-ai-gemini/SKILL.md

decimalai skills pull understudy-ai-gemini --out .claude/skills/

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

curl -fsSL --create-dirs -o .claude/skills/understudy-ai-gemini/SKILL.md https://app.decimal.ai/s/understudy-ai-gemini/SKILL.md

Raw file: /s/understudy-ai-gemini/SKILL.md ↗ · machine-readable summary at /s/understudy-ai-gemini.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

22 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 1h ago

Yes — +45% lift-57% tokens0% turns100% of whole cases pass with skill (22/22)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-01	✗→✓	▲ Improved	-72%	0%
case-02	✗→✓	▲ Improved	-84%	0%
case-05	✗→✓	▲ Improved	-80%	0%
case-06	✗→✓	▲ Improved	-70%	0%
case-07	✗→✓	▲ Improved	-43%	0%

Showing 5 of 22 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

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

understudy-ai / understudy

skills/gemini/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1

Skill contents

SKILL.md

Gemini CLI

Use Gemini in one-shot mode with a positional prompt (avoid interactive mode).

Quick start

gemini "Answer this question..."
gemini --model <name> "Prompt..."
gemini --output-format json "Return JSON"

Extensions

List: gemini --list-extensions
Manage: gemini extensions <command>

Notes

If auth is required, run gemini once interactively and follow the login flow.
Avoid --yolo for safety.

Want to see if understudy-ai/gemini 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.