Edward Langley
9e37213cd4
improvise-2oxt. All four casts under docs/casts/ opened and closed on `(0) Mac:<hostname> ~gf/u/edwlan/improvise` — a real hostname and home directory on what improvise-kh8 made the site root — and `formulas.cast` and `import.cast` showed that prompt as their visible OPENING frame. drill.cast also predated the records columns entirely, showing a single `Value` column where the current build draws a column per measure plus `+cat` and `+`. The repair is structural, not careful. `docs/record-casts.py` drives `improvise` on a pty it owns and writes asciicast v2 itself, so `improvise` is the pty's ONLY child and there is no shell for a prompt to leak from — nothing to remember to clean, and nothing that comes back when somebody re-records on another machine. Three other things stopped being accidents with it: the geometry is an input (120x37, the numbers docs/index.html already spelled, so they did not change), the pacing is a per-step table, and the header carries no `env` (which held $SHELL) and no `timestamp` (the recording machine's clock). Two decisions that each cost a re-record. No `:q` is typed at the end: the player loops, so the last frame is also the frame before the first, and a minibuffer reading `:q` is what it would show — the process is signalled instead. And each scenario had to be ARRANGED so the thing it names is visible: the drill cast drilled into a cell with no records behind it, and the pivot cast pressed `c` on a category already on the column axis. Both recorded cleanly and demonstrated nothing — true frames about the wrong thing — and neither was visible from the keystroke list. That is the method worth keeping: a cast can be replayed through a small ANSI reconstruction and READ AS TEXT, so "what does frame N show" has an answer rather than a guess. It is how the `+cat`/`+` columns in the new drill.cast were confirmed present, and how both dud scenarios were caught. The guard is `landing.spec.js`, asserted over the cast FILES: no header carries `env` or `timestamp`, the geometry is the one the page configures, and no chunk contains an OSC window-title sequence — the leak's signature, emitted by a shell once per prompt with the cwd in it and by `improvise` never. Asserted over the file rather than the rendering because a player draws a prompt as ordinary text, so a screenshot assertion would have to know what the hostname had been. BOTH clauses were injected separately, because the `env` one would otherwise mask the OSC one: the old cast fails on `env`, and the old cast with `env` stripped fails on the title sequence. docs/index.html loses the `p.dated` note admitting the drill cast was out of date, which is now false. Tests: 33 harness + 3 skipped (was 28 + 3). Rust and node unchanged. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FC2jVn8Au7E9JPkw6bwXXH
29 KiB
29 KiB