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Refuse a ref that is no ref, rather than answering over it

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The pin moves to Epiphany `5cda0886`, where `PipelineRef::validate_ref` opens
the leaf's grammar to a reader. `view` and `history`'s subject scope ask it
before they look, so a ref whose kind and id disagree is refused instead of
reporting the nothing a lookup finds. `query`'s `campaign`, `cut` and `repo`
filters take a `Slug`, a `Label` and an `OrgRepo`, not refs, and are unchanged.

The refusal is `MindRefusal::Document`, the leaf's `InvalidFormat` wrapped
where the organ already wraps the leaf's four. A new variant would be a second
name for one rule, and the grammar it names lives in the leaf.

`a_ref_whose_kind_and_id_disagree_is_refused_by_both_doors` pins both doors on
a disagreeing kind and on a local no writer composes, and pins that absence is
still absence: a well-formed id of a document this mind does not hold answers
`None` and an empty history as it always did. The history test's malformed
scope asserts the refusal where it asserted an empty answer.

`V24` and `V24L` in `tools/eureka-cut9-mutations.psd1` are the validation
dropped and the validation applied at `view` alone. `V10L` leaves the suite
with its reason in the header: a subject compared by `id` alone can no longer
differ from one compared whole, since both sides' kind is now a function of
the id, so the weakening is unreachable and a mutation that cannot fail is not
a proof.

`cargo test -p huginn-mind --lib` 57 passed, 0 warnings; `cargo check
--workspace` clean; Cut 8 and Cut 9 suites green-and-killed through the
harness. The lock moves the one pin.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Meta Vens 2026-09-16 22:41:17 +02:00
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@ -146,7 +146,7 @@ checksum = "d0881ea181b1df73ff77ffaaf9c7544ecc11e82fba9b5f27b262a3c73a332555"
[[package]]
name = "epiphany-pipeline"
version = "0.1.0"
source = "git+https://github.com/GameCult/Epiphany.git?rev=d5a36c2a291b910539072717d42d61a9aa7485d1#d5a36c2a291b910539072717d42d61a9aa7485d1"
source = "git+https://github.com/GameCult/Epiphany.git?rev=5cda0886bd937b9df18309de7f505029d0e41f4d#5cda0886bd937b9df18309de7f505029d0e41f4d"
dependencies = [
"anyhow",
"chrono",