---
name: omp-bundle-implementation-port
description: "Extract and port a working implementation from omp's minified dist/cli.js bundle (copy-not-invent requests); anchors, python slicing, regex-constant sweep, trace-driven test prediction."
---

# Porting built-in omp behavior out of the minified bundle

Use when Frank says "copy the omp implementation / work off known-working code" — i.e. port a built-in feature (vocalizer segmentation, retry logic, formatting rules) into our own file instead of hand-rolling a heuristic. For merely *auditing behavior claims*, use `omp-bundle-claim-audit`; this skill is extraction-for-porting.

Bundle: `~/.bun/install/global/node_modules/@oh-my-pi/pi-coding-agent/dist/cli.js` (minified; single-letter names, private `#x` fields survive).

## Extraction recipe

1. **Find the setting/entry strings first.** `grep -o 'ce({id:"<area>[^"]*"[^}]\{0,200\}' cli.js` — setting descriptions state semantics verbatim (e.g. `speech.enhanced` = "Rewrite assistant output into natural spoken prose with the tiny/smol model"). Descriptions are quotable ground truth.
2. **Anchor to code with a distinctive token**, not guesses: a method name (`pushDelta`), a state init, or a string. Then slice generously with python (bash heredoc), NOT grep -o which truncates:
   ```python
   src = open('cli.js').read()
   i = src.index('pushDelta'); print(src[i-1500:i+3000])
   ```
3. **Follow the constructor**: pipeline classes instantiate collaborators there (`this.#t ??= new fHe` → `fHe` is the real worker; `#g()` returned `{speakable:new fHe, pending:[]…}`). Dump `class fHe{` +4000 chars.
4. **Regex/helper sweep**: minified code declares shared constants in a trailing `var a,b,c,…` list and initializes them elsewhere (`Xyr=`, `Pwc=function`). Loop the names with `re.search(rf'{name}=', src)` and print ~400 chars each — the actual boundary/cleanup rules live in these one-liners.
5. Write slices to `/tmp/*.txt` and `read` them; don't eyeball megabyte greps.

## Port rules

- Rename fields/methods to readable names but keep logic **1:1** — the value is behavioral fidelity (Frank's "known-working set of code").
- Private `#x` fields port cleanly: TS classes in Bun extensions support `#`.
- Global-regex `.lastIndex=0` before each scan loop — minified code relies on it; keep it.

## Verification shortcut

Before running tests, **hand-trace** each test input through the ported rules (boundary indices, state transitions) and predict exact segment counts/strings; then run — predicted-vs-actual mismatch localizes port errors faster than test output alone. Worked example (2026-10-19, dankvoice PR #26): traced `"First stop here. Second one goes!!! Really? Third ... done"` → predicted 3 segments incl. `"Third ... done"` merged via flush (10-char boundary < 24-char started-min) → bats green first run.

## Known anchors (2026-10-19 bundle)

- Speak-aloud vocalizer pipeline: class `I6o` (gating on `speech.enabled`, suspend counter, enhancer, `#g()` per-message state).
- Utterance segmenter: class `fHe` + helpers `Pwc` (line-head classify), `Iwc`/`_wc`/`b6o`/`w6o` (boundary search), `Cwc`+`y6o` (cleanup: links→label, URL→host, path→basename). Regex consts: `Xyr` sentence-end runs, `pHe` weak breaks, `mwc` abbreviations, `hwc` undecided line-heads, `g6o` horizontal rules.
- Port already living in `agent/extensions/dankvoice.ts` (`SpeechSegmenter`) — when the bundle updates, re-extract `fHe` and diff against it before assuming our copy still matches.