| It definitely _could be_ an agent harness issue. For example, this is the logic opencode uses: 1. Agent is "plan" -> inject PROMPT_PLAN 2. Agent is "build" AND a previous assistant message was from "plan" -> inject BUILD_SWITCH 3. Otherwise -> nothing injected And these are the prompts used for the above. PROMPT_PLAN: https://github.com/anomalyco/opencode/blob/dev/packages/open... BUILD_SWITCH: https://github.com/anomalyco/opencode/blob/dev/packages/open... Specifically, it has the following lines: > You are permitted to make file changes, run shell commands, and utilize your arsenal of tools as needed. I feel like that's probably enough to cause an LLM to change it's behavior. |