# Origins reachable from the terminal via --origin

```
Type: log
```

## Intent

Make the four chargen origins actually playable now, without waiting on the
interactive new-game picker (criterion 3). A `--origin` flag is the smallest
real affordance that unblocks exercising non-Pilot origins.

## What landed

- `Origin::key` / `Origin::from_key` (origin.rs): a stable kebab-case key per
  origin plus a case-insensitive parser accepting the key or a short alias
  (`escaped`, `financial`, `daemon`, `research`). Round-trip pinned by
  `from_key_round_trips_every_origin_and_rejects_unknown`.
- Terminal `--origin <key>` / `--origin=<key>` flag (main.rs `Options`),
  parallel to `--seed`. It threads through both entry points: the human app
  (`App::with_origin_seed`) and agent mode (`agent::run` / `AgentApp::with_origin_seed`),
  each constructing `Sim::with_origin_seed`. Default and unknown handling:
  no flag → Pilot; an unknown key is rejected with a helpful message rather
  than silently ignored. Pinned by `origin_flag_selects_the_run_origin`.
- The old `with_seed`/`new` constructors became `#[cfg(test)]` Pilot-default
  helpers (their only remaining callers are tests).

## Not criterion 3

This is a dev/repro affordance in the same category as `--seed` — it is not the
player-facing new-game picker, and it does not add the core-card machine-axis
readout. Criterion 3 (the interactive picker + axis readout) remains outstanding
and rides the same not-yet-built new-game surface objective.md's B3 criteria
defer.

## Defense

Pilot-preserving: no flag selects Pilot, the identity origin, so default play is
byte-identical and all existing tests pass (372 core, 34 terminal, both
frontends build, fmt/clippy clean). The flag reuses the existing `Options`
parser and the already-landed `Sim::with_origin_seed`, so it adds no new game
rule — only a way to choose the origin the sim already supports. Unknown keys
fail loudly, matching `--seed`'s validation. chargen.md records that this is a
tooling affordance, not criterion 3.