Hoangsa — Development skill for Claude Code

HOANGSA

Context engineering for coding agents — Claude Code, Codex, Cowork.

  

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The problem

An agent's output degrades as its context window fills. Ask for a feature and you get good code for the first file, plausible code for the fifth, and by the tenth it has forgotten a type it defined itself. Bigger context windows push the cliff back; they don't remove it.

The usual answers — "be more specific", "break it into steps" — are advice. HOANGSA is structure.

The idea

Split the work into tasks. Give each task its **own fresh context window** holding only what it needs: the files it may touch, the behaviour it must implement, the command that proves it worked. The orchestrator never writes code — it dispatches, checks, and assembles.

Everything else follows from that:

• A task needs a spec precise enough to execute from, so there is a design phase that produces one.
• A worker with no history needs its rules and context handed to it, so prompts are assembled by a CLI, not improvised by an agent.
• A claim of "done" from a fresh worker is unverifiable, so every deliverable has a command that must pass.

That last one is load-bearing. Prompt text is a sug