[Bug] /tasks command shows no cloud sessions despite active sessions on claude.ai

Bug Description
Title: [BUG] /tasks shows no cloud sessions despite active claude --cloud sessions visible on claude.ai

Summary: Cloud sessions started locally with claude --cloud "..." run correctly and are visible/active on claude.ai/code, but the local CLI /tasks command lists nothing. Per the docs, /tasks is supposed to monitor these sessions.

Environment: CLI 2.1.207 · macOS (Darwin 25.5.0, arm64) · claude.ai subscription auth (same account) · valid GitHub origin · custom CLAUDE_CONFIG_DIR (~/.claude-tinyhood) whose tasks/ shares an inode with ~/.claude/tasks (shared store, not a split).

Repro: (1) claude --cloud "some task" from a GitHub-connected repo — it exits immediately. (2) Confirm session active on claude.ai/code. (3) Fresh claude in same repo → /tasks.

Expected: /tasks lists the active cloud sessions. Actual: empty.

• See https://code.claude.com/docs/en/claude-code-on-the-web#from-terminal-to-web where it discusses "Use /tasks in the Claude Code CLI to check progress"

Diagnosis notes: all documented prerequisites met; local ~/.claude/tasks/ only holds older local-background-task files (.lock, .highwatermark), remote-settings.json is {} — so cloud sessions are fetched server-side and that lookup returns nothing while the web UI shows them fine. Workaround: claude.ai/code + mobile app.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.207
• Feedback ID: 2a31b0f6-c9df-4fea-93c3-05b3cffe521b

Errors

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