Files
pxpipe/scripts
teamchong a66a558b55 refactor: remove all CLI flags and behavior env vars — single codepath
The proxy used to expose ~20 behavior toggles (--no-compress,
--no-tools, --no-schemas, --no-reminders, --no-tool-results,
--history, --no-history, --history-keep-tail N, --history-min-prefix N,
--min-chars N, --min-reminder-chars N, --min-tool-result-chars N,
--cols N, --multi-col N, --no-track, --events-file PATH, --port N,
--upstream URL) plus matching env vars. Each one was a dead branch in
the common case and a configuration knob nobody had a principled
reason to pick a value for.

Replaced with: exactly one way to run the proxy. Every compression
mode on, every tuning parameter at its measured-best value, history
compression always active (was opt-in dead code). The only adjustable
surface is deployment concerns — where to listen, what to forward,
where to log — env-var only:

  PORT                 default 47821
  ANTHROPIC_UPSTREAM   default https://api.anthropic.com
  PIXELPIPE_LOG        default ~/.pixelpipe/events.jsonl

CLI accepts only --help and --version. Anything else exits with
non-zero and a one-line error.

Notable behavior change:
- DEFAULTS.compressHistory flipped false → true. Variant-C history-
  image compression now runs on every request (was opt-in via
  --history / COMPRESS_HISTORY=1). The static-slab cache_control
  placement is on the system image, not on the history-replacement
  chain, so the published cache-topology risk does not apply.

Touched:
- src/node.ts: CliOpts → RuntimeConfig (3 fields). parseCli is now
  ~25 lines. printHelp reduced to env-var-only doc.
- src/core/transform.ts: DEFAULTS.compressHistory = true. Comment
  updated.
- scripts/restart.sh: drops PROXY_ARGS array entirely. Port read
  from PORT= env var. Unknown args rejected.
- tests/restart.test.sh: replaces flag-passthrough test with a
  reject-unknown-args test. 4/4 pass.
- tests/history.test.ts: renames the "compressHistory:false (default)"
  test to reflect the new always-on default; asserts the input-not-
  mutated invariant remains.
- README.md: configuration table reduced to 3 env vars; restart
  examples drop CLI flag passthrough.

Tests: 277/277. Typecheck + build clean. Restart script tests: 4/4.
2026-05-19 17:01:05 -04:00
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