S3: Mind::path_for bypassed the grammar door and the daemon's own tests
constructed stores through it directly. It is now private; a test-only
Mind::store_path_for validates through require_grammatical_slug first,
gated behind cfg(test) here and a test-support feature dev-dependents
opt into (huginn-daemon's Cargo.toml). The four daemon test call sites
and one huginn-mind test call site now go through the door.
S2: N1's door, require_grammatical_slug, had no mutation entry for two
of its three callers (open_with and require_instance survived deleting
it; open already had N1's own escape test). Added a test per caller and
a mutation entry for each of the three deletions (N1open, N1openwith,
N1requireinstance) in tools/eureka-cut10-mutations.psd1.
S4: a Unicode hyphen (U+2010) folded to ASCII '-' before the grammar
check survived. Added a fixture and mutation entry (S4fold) pinning
that no such fold runs before Slug::validate_slug.
S1: the size-gate fixtures varied operation and runtime id together
(4/16, 4/16, 10/19), so a formula tracking one and dropping the other
still passed. Added a fixture varying them independently (10/16 and
4/19) and two mutation entries (N4c, N4d) for the two formulas that
each drop one term.
Verified: cargo test -p huginn-mind --lib (65/65), cargo test -p
huginn-daemon --lib (20/20, one more than before: the new
independent-axis gate test). Mutation suites through the Eureka
harness: Cut 8 67/67 killed, Cut 9 38/38 killed, Cut 10 77/77 killed
(71 before this batch, +6: N1open, N1openwith, N1requireinstance,
S4fold, N4c, N4d). M0 green in every suite.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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