parameterized-skillslisted

# Parameterized skills A wrapper skill declares named slots; a consumer binds each slot to an installed inner skill in `.mattstack/skills.jsonc`; the wrapper's vendored `scripts/resolve-args.sh` resolves and validates the bindings and prints machine-readable JSON. Enforcement lives in the script, never in prose or frontmatter alone. Composition depth is capped at 1. Read, from this skill's directory and the plugin root: 1. `references/convention.md` -- slot and provides declaration grammar, the constrained frontmatter rules, and the resolver contract with its exact output shapes and error codes. 2. `../../schemas/skills-manifest.md` -- the bindings manifest, its discovery order, and its JSONC rules. To parameterize a skill: declare slots under `metadata` in its SKILL.md, copy `scripts/resolve-args.sh` from this skill into the wrapper's `scripts/` unchanged (the test matrix asserts identity with `cmp`), add the `allowed-tools` Bash rule from convention.md, and make the wrapper's prose run the script and react to its JSON -- resolve, then read the skill at `resolved.<slot>.path`; on failure, surface `errors` verbatim and stop. Worked example: `mattstack:shepherdr` declares slot `tiering` (contract `model-tiering@1`), bound to `mattstack:model-tiering`. Run the model-free matrix from the plugin root: ```bash tests/test-resolve-args.sh ```