The plan covers the first iteration of the kernel-extension-mechanics
milestone: type-scoped `<TypeName>.<member>` resolution in
`ailang-check`, narrowed `BareCrossModuleTypeRef` /
`BadCrossModuleTypeRef` diagnostics in `ailang-core::workspace`,
two new `CheckError` variants, CLI diagnostic-message rewording,
and atomic rewrite of 12 `.ail` example fixtures from `std_X.Y` to
the type-scoped form. Five tasks, each unit-of-review.
Includes a spec correction (same commit because plan recon
surfaced it): the prep.1 Blast Radius previously claimed
`hash_pin.rs` + `prelude_module_hash_pin.rs` refreshes and a
`design_schema_drift.rs` pin addition. Plan-recon walked every
test crate (per the schema-camelcase-fix hash-pin-blast-radius
lesson) and found:
* neither hash-pin file pins any fixture in prep.1's migration
set — refresh is empty;
* type-scoped resolution is a checker-only change (no new JSON
tags, no AST shape change) — the drift pin belongs to prep.2
(`Term::New`) and prep.3 (`kernel: true` + `param-in`), not
prep.1.
Spec section 'Blast radius' and the 'Iteration scope' summary now
reflect the recon-cleared reality.
All 176 files in the four accumulating directories now use a
zero-padded 4-digit counter prefix that reflects creation order
(`NNNN-slug.md`). The counter is assigned per directory in strict
git-log creation order; ties broken alphabetically by original name.
The old `YYYY-MM-DD-` prefix on docs/specs/ and docs/plans/ files is
dropped — the date is recoverable from git log and the counter
carries the ordering.
A file's counter is stable for the life of the file: never reassigned,
never reused, never compacted. Deleted files retire their counter;
subsequent files do not fill the gap. This is the property that lets
cross-references stay literal — refs use the full filename including
the counter (`design/contracts/0007-honesty-rule.md`) so they grep
cleanly and resolve directly without a glob step.
313 cross-references updated across .md/.rs/.toml/.c/.json files
(test pins, include_str! paths, design-INDEX entries, baseline notes,
runtime C comments, inter-contract markdown links incl. bare basename
and `../models/foo.md` forms).
CLAUDE.md gets a new "File-naming convention" section spelling out
the rule and rationale. skills/brainstorm/SKILL.md and
skills/planner/SKILL.md updated so new spec/plan creation produces
counter-prefixed names from the start.
The full test suite (cargo test --workspace) passes.