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test(agents): output size of --json fields, --brief and --jsonl - #72

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perf/output-size
Oct 15, 2026
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leemour merged 1 commit into
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perf/output-size

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@leemour leemour commented Oct 15, 2026

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Measures how much --json=<fields>, --brief and --jsonl cut from answers an agent reads, on a synthetic store (tg 0.56.0, memo 0.32.0). It feeds the "Search efficiently" docs page and a blog idea (NEED-1099 A, NEED-1122 A).

Headline: trimmed --json=<fields> saves 31% to 64% against full --json; --jsonl saves nothing; --brief changes only memo search messages (7%). Bytes are deterministic over 3 rounds; tokens are bytes/4 estimates.

Adds performance/agents/ (new area), the seed and run scripts, and links it from performance/README.md.

🤖 Generated with Claude Code

… and memo

Measured on a synthetic 5,000 message store, 3 rounds, deterministic. Trimmed
--json=<fields> cuts 31% to 64%; --jsonl does not shrink; --brief only affects memo
search messages (7%).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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leemour merged commit 8e1de36 into main Oct 15, 2026
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leemour deleted the perf/output-size branch October 15, 2026 00:34
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