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just-say-so

Run just-say-so in a single-prompt job

Goal. A non-interactive run, anthropics/claude-code-action say, gets the rules and enforces them, without relying on a next prompt.

Precondition. A config for CI, applied through JUST_SAY_SO_FORCE_CONFIG.

Steps

Section titled “Steps”

  1. Commit .github/just-say-so.ci.json:

    {
      "rules": { "onContextStart": ["startup"] },
      "files": { "mode": "block" },
      "reply": { "mode": "block" }
    }

  2. Set JUST_SAY_SO_FORCE_CONFIG to that path in the job’s environment.

Why these settings

Section titled “Why these settings”

reply.mode: "warn" delivers nothing in a single-prompt run: its report rides the next prompt, and there is none. block makes the model rewrite before the turn ends, which is right here and wrong in an interactive session. onContextStart: ["startup"] injects the rules once, which is all one prompt needs. files.mode: "block" holds the turn until written files are clean, which is where CI output lands.