ManulEngineGo

Add a new verb/command to the ManulEngine (Go) .hunt DSL. Use when extending the parser with a new CommandType, wiring runtime dispatch, and writing parser + runtime tests. Covers the full multi-file change checklist.

Add or modify low-level browser capabilities in ManulEngine (Go). Use when implementing a new Page interface method, touching Chrome lifecycle, CDP commands, input dispatch, or JS evaluation. Covers the interface-to-backend wiring pattern.

Enforce ManulEngine (Go)'s concurrency contract when editing runtime/, cdp/, worker/, or anything that spawns goroutines. Use when adding shared state, introducing a goroutine, modifying the Worker/Pool API, or touching CDP transport internals.

Add or modify runtime configuration fields in ManulEngine (Go). Use when introducing a new tunable engine parameter, wiring CLI flags, or env-var overrides. Covers the 3-layer priority chain and pointer-based JSON overlay.

Debug or extend the ManulEngine (Go) DSL preprocessor. Use when working with @import resolution, USE/CALL block expansion, variable interpolation, or scoped variable behavior. Covers the 5-level precedence hierarchy and circular-import detection.

Add or debug Go-level extensions — RegisterCustomControl and RegisterGoCall. Use when wiring a custom element handler, a CALL GO target, or when writing tests that involve the extension registry.

Author or review ManulEngine (Go) .hunt DSL files. Use when the user asks to write, modify, or review a .hunt file, or when generating automation for a web flow that will be run by the `manul` CLI.

Add metrics to execution reports or debug the explainability pipeline. Use when modifying pkg/explain data types, updating HTML report generation, or wiring new scorer signals into the report output. Covers per-hunt reports and aggregate index.html.

Add, tune, or debug ManulEngine (Go)'s element resolution scoring. Use when modifying pkg/scorer, adding a new signal to ElementSnapshot (pkg/dom), extending the JS probe (pkg/heuristics), or wiring a new score component into pkg/explain for debuggability.

Run or write tests for ManulEngine (Go) the right way. Use when adding a new test, debugging a flaky test, updating CI, or when the user asks "are tests passing?". Covers race-detector expectations, mock patterns, and the synthetic scorer suite.