determinism

Use when verifying outcomes with code instead of LLM judgment, versioning prompts with hashes, or ensuring reproducible agent behavior. Load for any critical verification. Scripts return boolean exit codes, not subjective assessments. Prompts use semantic versioning with SHA256 validation.

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Install this agent skill to your Project

npx add-skill https://github.com/ingpoc/SKILLS/tree/main/determinism

SKILL.md

Determinism

Reproducible outcomes through code verification and prompt versioning.

Core Principle

"Claude can run scripts without loading either the script or the PDF into context. And because code is deterministic, this workflow is consistent and repeatable." - Anthropic Engineering

Instructions

Replace LLM judgment with script verification
Version prompts with semantic versioning
Hash-validate critical prompts: scripts/validate-prompt.sh
Use exit codes (0 = pass, 1 = fail), not text

LLM Judgment vs Code Verification

Task	LLM (Bad)	Code (Good)
Tests passed?	"The tests appear to pass"	`pytest; echo $?` → 0 or 1
Valid JSON?	"This looks like valid JSON"	`python -c "json.load(f)"`
Server running?	"The server should be up"	`curl -s localhost/health`

References

File	Load When
references/code-verification.md	Writing verification scripts
references/prompt-versioning.md	Versioning/hashing prompts