Fetching from the wire…
Tools2026-07-29 · source-backed
Digital Applied catalogued them: concurrent subagents (default 20, CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS, v2.1.217), per-session total spawns (default 200, raisable but not disableable, reset by /clear), spawn depth (default 3 since v2.1.219, set to 1 to restore non-nesting), and --max-budget-usd, which as of v2.1.217 actually halts running background subagents rather than letting them spend past the cap. Dynamic workflows sit on a separate layer with hard caps of 16 concurrent and 1,000 total per run. Concurrency is not enforced in ultracode sessions, which explains a few surprising bills.
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The dominant orchestration shape is now a deterministic script that fans work across many subagents, has independent agents attack a problem from different angles, then has other agents try to refute the findings until answers converge before anything reaches you. Anthropic la...
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...
Anthropic shipped cross-session messaging for Claude Code on August 7, macOS and Linux, version 2.1.224 or higher. Two new tools: ListAgents discovers other active sessions on your machine, SendMessage delivers text to one by name. Messages between sessions on the same machine...
This Rust harness (+2,585 stars) competes on resource footprint rather than features: 27.8 MB PSS for a single session with local embedding disabled, claimed 13.9× less than Claude Code and 6× less than jcode's own embedding-enabled mode. Time-to-first-frame 14.0ms against a c...
Anthropic added it in 2.1.237 on August 20, selectable under Output style in /config or settings.json. The r/ClaudeAI thread asking whether it reduces consumption drew 219 upvotes and a clear consensus of no: cost sits in input context, file reads, and reasoning traces, not us...
Claude Code 2.1.232 shipped August 13 with a default flipped underneath everyone. Subagent forking is now on: a spawned subagent inherits the full parent conversation and shares its prompt-cache prefix instead of starting cold. Nested spawn depth defaults to 3. Practitioner wr...
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