Function validateInput

src/tools/ExitWorktreeTool/ExitWorktreeTool.ts:174–224

(input)

    return input.action
  },
  async validateInput(input) {
    // Scope guard: getCurrentWorktreeSession() is null unless EnterWorktree
    // (specifically createWorktreeForSession) ran in THIS session. Worktrees
    // created by `git worktree add`, or by EnterWorktree in a previous
    // session, do not populate it. This is the sole entry gate — everything
    // past this point operates on a path EnterWorktree created.
    const session = getCurrentWorktreeSession()
    if (!session) {
      return {
        result: false,
        message:
          'No-op: there is no active EnterWorktree session to exit. This tool only operates on worktrees created by EnterWorktree in the current session — it will not touch worktrees created manually or in a previous session. No filesystem changes were made.',
        errorCode: 1,
      }
    }

    if (input.action === 'remove' && !input.discard_changes) {
      const summary = await countWorktreeChanges(
        session.worktreePath,
        session.originalHeadCommit,
      )
      if (summary === null) {
        return {
          result: false,
          message: `Could not verify worktree state at ${session.worktreePath}. Refusing to remove without explicit confirmation. Re-invoke with discard_changes: true to proceed — or use action: "keep" to preserve the worktree.`,
          errorCode: 3,
        }
      }
      const { changedFiles, commits } = summary
      if (changedFiles > 0 || commits > 0) {
        const parts: string[] = []
        if (changedFiles > 0) {
          parts.push(
            `${changedFiles} uncommitted ${changedFiles === 1 ? 'file' : 'files'}`,
          )
        }
        if (commits > 0) {
          parts.push(
            `${commits} ${commits === 1 ? 'commit' : 'commits'} on ${session.worktreeBranch ?? 'the worktree branch'}`,
          )
        }
        return {
          result: false,
          message: `Worktree has ${parts.join(' and ')}. Removing will discard this work permanently. Confirm with the user, then re-invoke with discard_changes: true — or use action: "keep" to preserve the worktree.`,
          errorCode: 2,
        }
      }
    }

    return { result: true }
  },
  renderToolUseMessage,
  renderToolResultMessage,
  async call(input) {