using-development-skills git:20261031.a82a617A

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---
name: using-development-skills
description: Route development work by scope, risk, and the need for a lasting work record.
---

# Using development-skills

For development work, read the [development loop](../../shared/development-loop.md).
Read the [engineering contract](../../shared/engineering.md) before design or code changes, and apply `rethink` to each design.
Skip this router for a bounded subagent task.
Resume an active plan at its recorded step. Otherwise select the path that fits the task.
Read [full-path.md](../../shared/full-path.md) only for work that needs a lasting decision record or designed proof.
The loop owns authorization; use `brainstorming` only for material open decisions.
For unavailable Claude tool names, read [Codex tools](references/codex-tools.md).