v0.8.11

Added

• fascicle/stdio: run any flow as a single-shot child process with run_stdio(flow, options). Reads JSON from stdin, optionally validates it against a zod input_schema, runs the flow, optionally validates the result against an output_schema, and writes exactly one JSON document to stdout. Exit code is the verdict (0 = result is authoritative, 1 = flow failure, 2 = contract violation), and a machine-readable failure object is always the last stderr line on non-zero exit.
• stderr_logger in fascicle/adapters: a JSONL trajectory logger to stderr, the default under run_stdio so stdout stays clean for the result envelope.

Fixed

• check-publish's @arethetypeswrong/cli step no longer silently truncates its report when the output exceeds the OS pipe buffer (first hit once the ./stdio subpath pushed the report past 64 KiB).

Internal

• Recorded the design rationale for the stdio agent contract as a research note.