feat(ai-agent): answer questions and decline unsupported edits in text

[Suharshit]

Problem

In production, "graph is looking too complex, simplify it" and "what is my name?" both ended as a red error: "The plan didn't include any new components to add…". The analyze step could only decide ask, plan, or generate, and the agent can only add to a design, so every question or edit request was forced into planning, came back with nothing to add, and failed.

Changes

• New decisions in TURN_DECISIONS:
  • reply — questions about the diagram or plan, greetings, anything off-topic. The model's answer is shown as normal text.
  • unsupported — remove / merge / rename / move / restyle / simplify existing components (even mixed with additions). Returns UNSUPPORTED_EDIT_MESSAGE, written in code so the agent never promises edits it can't make.
• enforceDecision allows both only for typed messages; answers and skip turns still go to planning.
• New reply result action, settled as a TEXT message with no phase or brief change, so a previously proposed plan stays generatable.
• A plan with nothing new to add now returns a reply instead of aborting the run, so it no longer renders as an error. The passthrough for that message is kept for runs on older task versions.
• These turns end after the analyze call (one model call instead of two).
• context/architecture-context.md documents the add-only behaviour; progress tracker updated.

No UI change was needed: the sidebar already renders assistant TEXT messages.

Test plan

• pnpm typecheck, eslint on lib/ai and src/trigger
• Offline decision rules: reply/unsupported kept for messages, turned into plan for answers and skip; result schema accepts reply and rejects an empty one
• Live analyze on gemini-3.5-flash-lite with a 10-component CI/CD canvas:

Message	Decision
graph is looking too complex, simplify it…	unsupported
what is my name?	reply
why is there a separate CD Deployer?	reply
add a Slack notifier that alerts when a deploy fails	plan
remove the unit test job and add a load test job instead	unsupported

• After merge (Trigger.dev tasks deploy from main): the same messages in a production session, then generate a previously proposed plan after a reply turn

🤖 Generated with Claude Code

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
draftly	Ready	Preview	Sep 16, 2026 5:36pm UTC

[coderabbitai]

Important

• 🔍 Trigger review

This repository does not receive automatic reviews because it has fewer than 10 stars.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: 2e4910f4-5d6e-49f1-8a87-3fe4458fa4a5

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}