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Tools2026-09-26 · source-backed
The bug hit query() calls using hooks, can_use_tool or SDK MCP servers. When a subagent finished just before the turn's result arrived, the SDK closed stdin early and the model reported the tool as refused. It now waits for the CLI to report idle via session_state_changed, capped by CLAUDE_CODE_PRINT_BG_WAIT_CEILING_MS at a 10-minute default. TypeScript SDK 0.3.283 the same day emits warnings as system/informational messages instead of dropping them.
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Three companies shipped standalone agent platforms in the same week, and none of them are IDE plugins. Google launched Antigravity 2.0 at I/O with a desktop app, a Go-based CLI, and an SDK for self-hosted agent deployments. No IDE. It's conversations, projects, and multi-agent...
The IDE market is fragmenting, and this week drew the sharpest lines yet. Cursor 3 launched as a rebuilt agent-orchestration platform in Rust and TypeScript, replacing the VS Code fork with an Agents Window for dispatching and monitoring multiple AI coding agents. Anysphere hi...
The Python SDK release on September 23 adds ClaudeAgentOptions.verbatim_prompts, default False. Set it True and user messages reach the CLI exactly as written, with no @path expansion and no slash-command dispatch. Needs CLI 2.1.248+. Anybody inlining emails, tickets or scrape...
Red Hat's Emerging Technologies group published ripwire, an Apache-2.0 zero-dependency C++23 binary with vendored tree-sitter grammars for 21 languages, exposed as both a CLI and an MCP server (GitHub). It reached 969 stars on Hacker News on September 7. It returns ranked symb...
v1.0.81 (August 27) lists MCP 2026-07-28 support across CLI, SDK, IDE and in-memory clients, and hooks now receive the current OTel trace context: inputs gain traceparent plus tracestate when the span carries vendor state, and command hooks get matching env vars, so hook work...
Claude Code 2.1.229 shipped a config flag most people will scroll past: CLAUDE_CODE_WORKFLOW_PREFIX_STAGGER_MS. What it does is delay the launch of sibling agents that share a prompt prefix, so the second through Nth agents read the warm cache instead of each writing their own...
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