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Don Cheli: TDD Implementer — measured AI agent skill | DecimalAI

bilal140202/doncheli-implement

SkillScore82Maintained

Execute TDD implementation from task list following RED-GREEN-REFACTOR cycle with mandatory tests, stub detection, and quality gates. Activate when user mentions "implement", "build", "code", "develop", "implementar".

by bilal140202

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

Automatic

Coding pack

decimalai skills pull bilal140202-doncheli-implement

Get this skill — curl · raw file

curl -fsSL https://app.decimal.ai/s/bilal140202-doncheli-implement/SKILL.md

Raw file: /s/bilal140202-doncheli-implement/SKILL.md ↗ · machine-readable summary at /s/bilal140202-doncheli-implement.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 9h ago

—-31% tokens0% turns82% of whole cases pass with skill (18/22)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-03	✗→✓	▲ Improved	-48%	0%
case-06	✗→✓	▲ Improved	-70%	0%
case-09	✗→✓	▲ Improved	-32%	0%
case-10	✗→✓	▲ Improved	-59%	0%
case-16	✗→✓	▲ Improved	-49%	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 — 8/2/2026

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

bilal140202 / the-lord-of-the-skills

skills/rohan/claude-code/doncheli__don-cheli-sdd/SKILL.md

View on GitHub ↗

License MITImported 8/2/2026Version v1

Skill contents

SKILL.md

Don Cheli: TDD Implementer

Iron Law #1: TDD is MANDATORY

Every piece of production code MUST have a test written BEFORE the implementation.

Cycle

RED: Write a test that FAILS
GREEN: Write MINIMUM code to make the test pass
REFACTOR: Clean up without changing behavior

Rules

Never skip tests
Never mark a task complete if stubs exist (// TODO, throw new Error('not implemented'))
Run linter after each task
Check coverage >= 85% on new code
If a test fails 3 times, STOP and ask the user (Stop-Loss rule)

Quality Gates

Gate 5: All tasks have TDD pairs (test + implementation)
Gate 6: All tests pass, coverage met, lint clean, build succeeds

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