release v0.12.0
- **`agent-shape.toml`** at the repo root with `[commands].top_level`
enumerating 19 subcommands. Cross-validated against the binary via
`jig check --binary` so the shape file and the actual CLI surface
cannot drift apart silently.
- **`scripts/agent-shape-fixture.sh`**, an idempotent fixture script
that seeds 3 registries for agent-shape tuning runs. Re-running it
is safe; existing state is left untouched.
- **5 tuning tasks** under the agent-shape workflow plus a first
baseline (n=5).
- **Treatment v0** for first-contact discoverability:
- `kit --help` now opens with a workflow preamble naming
`kit status`, `kit pin`, `kit unpin`, and `kit verify-registry`
so the first thing an agent reads points at the right entry
points.
- `kit skill` gains a first-contact section and worked examples.
- `kit status` prints a soft mtime nudge when `kit.toml` is newer
than the lockfile, pointing at `kit verify` to refresh derived
state. Non-fatal; safe across coarse-mtime filesystems.
- **`hero.svg`** and **`avatar.svg`** in the nomograph paper-palette
OV-1 style.
- **`CODEOWNERS`** at the repo root.
- README aligned with current state; aspirational claims dropped.