Individual skill

leave-only-first-principle

Use when asked to prune a design or codebase until only primitives remain, producing a first-principles map. Not for remote, credential, publish, deploy, or irreversible changes.

.devin/skills/leave-only-first-principle/SKILL.md

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# Leave only first principle

## Contract

| Field | Bound contract |
|---|---|
| Trigger | User names a design artifact or codebase to reduce to its primitives before a rewrite or codebase lesson |
| Authority | Reversible local: writes only the named pruning map artifact; rollback is deleting that artifact. No remote mutation. |
| Side effect | A local file holding the pruned first-principles decomposition; recoverable by deletion |
| Done | Every leaf in the map is a language primitive, stdlib call, or proven irreducible primitive; no composite element remains |

## Inputs

- Required: a design artifact or codebase path, named by the human at invocation