feat(core): reactive hook events for CwdChanged and FileChanged (#2487)#2531
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feat(core): reactive hook events for CwdChanged and FileChanged (#2487)#2531
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Add CwdChanged and FileChanged hook events to Zeph's lifecycle system, providing competitive parity with Claude Code and Goose environment-change hooks. - New `[hooks]` config section with `cwd_changed` and `file_changed` entries - `FileChangeWatcher` in zeph-core uses notify + 500ms debounce; stored in LifecycleState to live for the agent's full lifetime - `SetCwdExecutor` new tool (`set_working_directory`) that calls `std::env::set_current_dir`, making cwd changes intentional and observable - Post-tool-execution cwd poll detects changes and fires `cwd_changed` hooks with ZEPH_OLD_CWD / ZEPH_NEW_CWD env vars - FileChanged events fire hooks with ZEPH_CHANGED_PATH / ZEPH_CHANGE_KIND - Hook execution reuses SEC-H-002 env-cleared shell pattern - `with_hooks_config` wired in all three entry points: runner, acp, daemon
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Summary
CwdChangedandFileChangedreactive hook events, providing parity with Claude Code v2.1.83 and Goose v1.27.x environment-change hooks[hooks]config section with[[hooks.cwd_changed]]and[hooks.file_changed]subsectionsset_working_directorytool callsstd::env::set_current_diron the agent process; post-tool cwd poll detects the change and fires hooks withZEPH_OLD_CWD/ZEPH_NEW_CWDFileChangeWatcher(notify + 500ms debounce) stored inLifecycleState— fires hooks withZEPH_CHANGED_PATH/ZEPH_CHANGE_KINDTest plan
cargo nextest run --workspace --all-features --lib --bins— 7575/7575 passcargo clippy --workspace -- -D warnings— cleancargo +nightly fmt --check— clean[[hooks.cwd_changed]]in testing.toml, callset_working_directory, verify hook fires[hooks.file_changed]with a watch path, modify a file, verify hook firesCloses #2487