Skip to content

v2.1.176

Choose a tag to compare

View all tags
@mike1858 mike1858 released this 12 Jun 21:01
· 13 commits to main since this release
v2.1.176
32401a1

2.1.176

(☝️ Click to see full diff.)

+4,360 tokens

  • REMOVED: System Prompt: Claude in Chrome skill note — Removes the note telling the agent to invoke the claude-in-chrome skill (via the Skill tool) before using any mcp__claude-in-chrome__* browser tools.
  • Agent Prompt: Coding session title generator — Adds examples to match the session's language (a Korean-session title) and to avoid refusal/error titles or an English title for a non-English session.
  • Data: Claude API reference (all languages) — Adds refusal-fallback guidance for Fable 5, recommending the opt-in server-side fallbacks parameter (beta server-side-fallback-2026-06-01, falling back to Opus) by default so a policy decline is re-served by the fallback model inside the same call; cURL, Python, and TypeScript include runnable examples with switch-point and served-by detection, C# and Go give inline SDK snippets, and Java, PHP, and Ruby point to each SDK's examples/. Notes the parameter is rejected on the Batches API and unavailable on Amazon Bedrock, Vertex AI, and Microsoft Foundry (use the client-side middleware there).
  • Skill: Building LLM-powered applications with Claude — Reframes refusal stop-reason handling to opt into fallbacks by default: new Fable 5 code should include the server-side fallbacks parameter so a refusal doesn't fail the request outright, tell the user it's enabled, and drop it only if they decline, with client-side middleware where server-side fallbacks aren't supported.
  • Skill: Design sync Storybook source shape — Adds a [GRID_OVERFLOW] validation warning and a cardMode: "column" override for stories wider than a grid cell (data tables, full-width bars), plus rebuild rules noting presentation-only keys (cardMode/primaryStory) carry grades via a targeted rebuild while a viewport change re-grades and needs a full build.
  • Skill: /design-sync package source shape — Adds a [GRID_OVERFLOW] validation warning and a cardMode: "column" override for wide components (data tables, full-width bars) that render wider than their grid cell, batching every flagged component into one targeted rebuild.
  • Skill: Model migration guide — Adds "default to opting in" guidance for refusal fallbacks, recommending migrated and new Fable 5 code ship the server-side fallbacks opt-in from day one rather than as a later hardening step.
  • System Prompt: Coordinator mode orchestration — Expands the concurrency guidance: launch independent workers in parallel via multiple tool calls in one message and cover multiple research angles, but don't parallelize simple tasks that are faster in a single worker loop.
  • System Prompt: Fork usage guidelines — Updates the "when to fork" instruction to fork by passing subagent_type: "fork" instead of omitting subagent_type.
  • System Prompt: Forked agent guidance — Explains that calling Agent with subagent_type: "fork" creates a background fork that inherits your full conversation context (rather than omitting the type), and notes that other subagent types — or omitting it — start fresh agents with no context.
  • System Prompt: Subagent delegation examples — Updates the worked examples to pass subagent_type: "fork" when forking and clarifies that a non-fork subagent_type starts a fresh agent.
  • System Prompt: Writing subagent prompts — Reframes the briefing note to say any agent other than a fork starts with zero context (previously "when spawning a fresh agent with a subagent_type").
  • Tool Description: Agent (simple usage notes) — Notes that a new Agent call starts a fresh agent except subagent_type: "fork", which inherits your context (when forking is available).
  • Tool Description: Agent (usage notes) — Updates the fresh-agent note so a new Agent call starts a fresh agent with no memory of prior runs except subagent_type: "fork", and clarifies that a research-only agent is not aware of the user's intent because it is a fresh agent.
  • Tool Description: Agent (when to launch subagents) — Rewrites the subagent_type guidance so "fork" forks yourself (inheriting your full conversation context and always running on your model, ignoring any model override) while any other type — or omitting it — starts a fresh agent (general-purpose by default).
  • Tool Description: Artifact — Adds that reading an existing artifact's content is done by calling WebFetch with its URL.
  • Tool Description: claude.ai Project — Adds file-upload support: project_info now lists file uploads (PDFs, images), project_read reads document-kind uploads (PDF, docx) while image and other non-document uploads return empty content with file_kind set, and project_delete deletes only text docs (file uploads are read-only via the tool and must be removed in claude.ai).
  • Tool Description: WebFetch (concise) — Adds an exception (when the Artifact tool is enabled) that claude.ai/code/artifact/{uuid} URLs ARE fetchable via your claude.ai login and should use WebFetch, not curl, which gets the SPA shell or a Cloudflare 403.
  • Tool Description: WebFetch private URL warning — Adds the same exception (when the Artifact tool is enabled) that claude.ai/code/artifact/{uuid} URLs (including preview.claude.ai) are fetchable via the claude.ai login and should use WebFetch, not curl or a headless browser.
Assets 2
Loading