v2.1.296

2.1.296

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+560 tokens

• NEW: Data: Managed Agents quickstart (Bug hunter, Explainer video maker, Watchlist scanner) — Three bundled templates, each with agent.md, environment and session definitions, built on parallel workflow runs with an independent review step.
• NEW: System Prompt: Subagent delegation when-to-use guidance — Delegate when an agent type matches, work is independent and parallel, or answers span several files; search directly for single-fact lookups.
• NEW: Data: Self-hosted runner disabled-by-organization fatal message — Explains that registration was refused because self-hosted environments are off for the organization, and that the accepted environment secret should not be rotated.
• NEW: Data: SDK set model only_if_model_is_current field — Internal flag making a set_model request a system-prompt-only update that succeeds only when the named model is already current.
• NEW: Data: Turn handoff hydrates_carried_lines field — Internal field marking workers that rebuilt their conversation from the stored transcript, and describing how resent handoffs are re-accepted, echoed, or refused.
• REMOVED: Tool Description: Artifact publishing introduction, Artifact runtime capabilities guidance (including optional marker), Artifact browser storage guidance (v2 page contract and capabilities-skill variants), Updating existing artifacts, Prohibited artifact publishing, Publish audience-facing deliverables, and Artifact gallery and publish response guidance — Terminal-wording variants dropped; app-wording counterparts remain, but the gallery and publish-response note has no replacement.
• REMOVED: System Prompt: Bash call cost guidance — Drops the advice to batch a decision's work into one command, keep printed output small, and recheck every requirement before finishing.
• REMOVED: Data: Managed Agents outcomes — Drops the standalone outcomes reference covering user.define_outcome, rubrics, grader iterations, and deliverables.
• REMOVED: Data: Tool use reference — PHP — Drops the PHP tool-use reference, including the beta tool runner and manual agentic loop.
• Data: Tool use reference (C#, Ruby) — Adds a "When to offer Managed Agents" section: after finishing large repeated-step Messages API jobs, offer Managed Agents once, with trade-offs.
• Data: Claude Code gateway protocol — Documents a Desktop Code tab probe sending If-None-Match: * for session settings, and how 200/304/404, errors, and timeouts affect session startup.
• System Prompt: Self-hosted runner doctor — Adds troubleshooting rows for the organization-disabled refusal, spent or expired work orders, rejected work orders, and poll-auth failures on on-demand runners.
• Tool Description: SendMessage — When messaging beyond a session's own agents is disabled, recipients are limited to session agents, and the inbox and legacy protocol-response text are dropped.
• Tool Description: Agent usage notes — Adds a conditional note: give each parallel fan-out lookup effort: "lower", use "lower" for mechanical, self-checking briefs, and "higher" for pieces needing more reasoning.
• Tool Parameter: Bash run_in_background guidance — Adds a conditional note that background commands keep running after the reply ends until they finish or time out, while shell-detached processes (nohup, &) are usually stopped minutes later.
• System Prompt: Subagent delegation cost guidance — Calls the subagent brief your "first" lever on every cost, rather than your "one" lever.
• Agent Prompt: Dream memory consolidation — Removes the session-logs (logs/) source and its ls -R logs/ step; sessions/ entries and transcript search remain.
• Agent Prompt: Conversation summarization (short variant) — Drops the security-instruction preservation note, user-message attribution guard, and closing line about following additional summarization instructions.
• Data: Data visualization marks and anatomy — Y-axis ticks now use compact labels from 1,000 up (0 / 1K / 2K) instead of comma-separated thousands.
• Data: Turn handoff available event schema — Adds hydrates_carried_lines to the capabilities the available event reports.