Scope before implementation
Target paths are an implementation control, not a retrospective description. State them before the agent starts so it can recognize a boundary crossing.
Answer page
How do you prevent an AI coding agent from changing out-of-scope files?
Declare allowed target paths before implementation, review changed paths against that boundary, and require escalation before the agent broadens scope.
Direct answer
Prevent out-of-scope changes by listing the permitted implementation paths in the task definition, checking the diff and implementation summary against that list, and requiring the agent to stop for human approval when a necessary change falls outside the declared boundary.
Practical guidance
Make the next review decision easier.
Treat discovery as escalation
If an agent finds that another file must change, pause and ask whether to widen the task, create a dependency task, or choose a different solution.
Review the changed-path list
A written summary of changed paths makes scope review fast and prevents unrelated edits from hiding in a large generated diff.
Verified demo evidence
A public prompt and outcome, not a completion claim.
This prompt and outcome are from the website’s checked-in synthetic repository demo. Substitute your own repository paths and declared validation gates when you apply the workflow.
Repository-writing command
Prompt: "Create implementation-sized tasks from the selected milestone plan."
outcome: Created 2 declared tasks and implementation summariesAuthorship and sources
Trace this guidance to maintained product evidence.
- Maintainer
- Tianna McCoy ↗Day Shift maintainer; responsible for the repository-native workflow and release evidence referenced here.
- Last updated
- Tested Day Shift
- v0.2.26
Keep exploring
Follow the next question, not a generic funnel.
What Should a Coding-Agent Task Definition Include?
The objective, scope, acceptance criteria, and validation a coding agent needs before changing code.
Read nextWhen to Stop an Agent and Escalate the Work
Clear triggers for moving coding-agent work to accountable human judgment.
Read nextHow to Recover When a Coding Agent Makes the Wrong Change
Contain, review, correct, and improve the task boundary after an agent mistake.
Read nextFind your answer
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