HomePeopleCompaniesAI ModelsOpen SourceAgentsResearchApps
AllFrameworksCoding agentsProtocolsProducts
AgentsCoding agentsAnthropic 28 Apr 2026 aifirst-review

Claude Code 2.1.121 review: PostToolUse hooks can now replace output for all tools

The brief

In 2.1.120-2.1.121, PostToolUse hooks can replace tool output for all built-in tools, not just MCP tools.

Key points

  1. MCP servers auto-retry startup 3 times, and unbounded memory growth with images was fixed.
Read the original GitHub
Source: aifirst-review · Category: Claude Code · Summary is machine-generated; verify against the original.

Sources

Most starred

Anthropic uploaded 8+ hours of talks from "Code w/ Claude" SF - all 19 videos (free on YouTube)
/24 Aug 2026/reddit/Claude Code/1★
Volt: local-first PDF editor with AI chat, OCR, annotations, and e-signatures and zero telemetry
/25 Aug 2026/GitHub/Tools/1★
Serve Markdown to AI Agents with Accept Headers
/27 Aug 2026/HN/Tools/1★
Bun 1.4: JavaScript runtime rewritten in Rust
/21 Aug 2026/manual/Tools/1★
OCR It: open-source tool to pull text from un-copyable documents for LLM processing
/24 Aug 2026/HN/Tools/1★

← All Claude Code news · Home