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Tools2026-09-12 · source-backed
OTEL_METRICS_INCLUDE_REPOSITORY adds vcs.* attributes to metrics and events, and with OTEL_LOG_TOOL_DETAILS commit events also carry vcs.ref.head.* (changelog). Paired with bashEditDiffEnabled, you get per-repo cost and per-repo edit auditing without writing instrumentation. Anybody who's tried to answer "which project is burning the tokens" by hand will recognize what this removes.
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v2.1.214 added message.uuid, client_request_id, and tool_source attributes to OTel log events, plus CLAUDE_CODE_OTEL_CONTENT_MAX_LENGTH to configure the 60 KB content-attribute truncation (changelog). tool_source is the one to wire up: it distinguishes a built-in tool call fro...
It now dedupes local CLAUDE.md files against checked-in ones, proposes trimming content it can derive from the codebase, ranks unused skills, MCP servers, and plugins by context cost, and flags slow hooks. Background subagents run by default and, when launched from claude agen...
I've been telling people for months that the agent code I review is *correct and awful*. Correct in the sense that it compiles, passes the tests, does the thing. Awful in the sense that a 400-line function does the work of 80, the same helper exists three times under different...
This one rearranged my week. An essay published August 4 walks through Databricks' independent benchmark of coding harnesses against its own multi-million-line codebase. Pi, a harness with four built-in tools and a system prompt under 1,000 tokens, paired with Opus 4.8 at xhig...
Three separate Anthropic changes over about two weeks point the same direction, and none of them announced themselves as a strategy. Claude Code 2.1.238 added claude self-hosted-runner --defer-shutdown-max-min, which keeps serving attached sessions on SIGTERM, parks whatever's...
Claude Code 2.1.233 added an environment variable configuring the WebFetch session URL cache TTL, with the default unchanged at 15 minutes (Claude Code Changelog). That default is a real problem for any agent polling a status page, a CI endpoint or a changelog inside a long se...
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