v0.5.3

v0.5.3 - 2026-09-24

Leaner prompts, same research quality

• The system prompt and the 11 workflow prompts lost about 200 lines. A block of tool-name rules was copied into every workflow and repeated in the system prompt, and the prompts referred to memory, process, chart, and experiment tools Feynman does not ship, FEYNMAN_SUMMARIZE_* environment variables that nothing reads, and a PDF crash that no longer exists.
• Workflows now wait for their background subagents before the final answer. In one-shot feynman --prompt runs, a /lit run could end while its reviewer was still working and never write the provenance file.
• On the /lit eval with GPT-5.6 Terra, 4 of 4 questions finished, all 44 citations resolved with matching titles, and each question ran the researcher, verifier, and reviewer in under 11 minutes (0.5.2: 9-14 minutes, 43 of 43 citations).

Smaller install

• CLI telemetry sends its command events through posthog-node, like the rest of Feynman. It no longer also sends each command as an OpenTelemetry span and two log records, which removes nine @opentelemetry packages (about 28 MB). The events and what they contain are unchanged.

Known issue

• Claude Opus 5.5 refuses some biology literature reviews (for example /lit CRISPR base editing) with "The model refused to complete the request". The same topics run on GPT-5.6 Terra.