refactor(server): decouple WorkingDir from RuntimeConfig in SessionManager#3602
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…nager Eliminates the hacky \.Clone()\ of the global CLI \RuntimeConfig\ inside the \SessionManager\'s per-session path. Instead of overriding the config's \WorkingDir\ and passing the mutated copy down to the team loader, the session's working directory is now passed cleanly via a new \ eamloader.WithWorkingDir()\ functional option. This treats the \RuntimeConfig\ as a proper read-only global context and resolves a lingering TODO left by maintainers regarding configuration leak.
aheritier
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area/agent
dgageot
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Jul 13, 2026
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Description
This PR resolves an architectural TODO regarding configuration leakage inside the
SessionManager.Previously, the
SessionManagerwas mutating the global CLIRuntimeConfigby performing a heavy.Clone()operation on every session request just to inject the session's specificWorkingDir.Instead of overriding the config's
WorkingDirand passing a mutated copy down to the team loader, the session's working directory is now passed cleanly via a newteamloader.WithWorkingDir()functional option. This allows the backend to treat theRuntimeConfigas a pristine, read-only global context, eliminating the clone hack in the hot path.Changes Made
pkg/teamloader: Added aWithWorkingDir()functional option and updated the fallback coalescing (cmp.Or) so tests/CLI execution remain 100% backwards compatible.pkg/server: Removedrc := sm.runConfig.Clone()insideRunSessionand ferried theWorkingDirvia the new option.TODOas the structural weirdness is fully resolved.Validation
task build/go build ./...)task lint/go vet)go test ./pkg/server ./pkg/teamloader)