Fix an AI-generated deployment build error: reproduce the failing command

A worked example: where the task becomes difficult

A fictional web app works under its development server but fails during production compilation because an internal import has different filename casing. The developer’s machine does not expose the same mismatch as the deployment environment. Another failure may come from lint or missing build-time configuration. Keep the provider log’s stage and first relevant error intact so the agent can distinguish these cases.

Decisions to make before implementation

Record package manager, lockfile, runtime version, base directory and build output. Distinguish dependency installation, compilation, checking and deployment packaging. Reproduce with the repository’s own commands where possible. A provider error can be caused by application source or configuration; identify ownership before modifying provider settings. Keep secrets out of copied build logs and never print all environment values for diagnosis.

A practical sequence for the work

Use the sequence below as a task boundary, not as a claim that the example has been executed. Work with approved inputs and the project’s actual architecture. If a required integration or permission is unavailable, keep that stage visibly incomplete rather than generating a plausible substitute result.

• Read the first failing build stage and capture its exact command.
• Confirm the application root, dependency lockfile and expected runtime version.
• Repair the supported source or configuration issue and rerun that gate.
• Verify the resulting output and public route after deployment separately.

A detailed brief you can adapt for your agent

Replace the illustrative context with your approved facts and controlled inputs. Keep the stated boundaries when adapting the brief. The expected deliverable matters more than a particular tool name: ask for an explanation grounded in the inspected material and evidence for the requested outcome.

Repair the first production build failure using the supplied provider log and current project configuration. Preserve the existing package manager and host unless evidence requires a change. Check import paths, required environment names and the failing gate. Do not disable checks to hide errors. Report the command result and deployment state separately.

Failure modes that an attractive preview can hide

Disabling lint, type checking or tests makes a pipeline greener without necessarily repairing the failing code. Only change a gate when its requirement is genuinely wrong and the rationale is reviewable. Avoid deleting the lockfile as a generic fix; it can introduce dependency drift. Local build success is useful but does not prove the provider accepted or published the revision.

Technical references: Chrome: console features reference

Acceptance checks and the evidence to retain

Provide the causal error, targeted patch, command result and remaining release checks. Retain the provider’s failed and successful revision identifiers when available.

Specific answers

Common questions