feat(semantic): bind exact spans as units; refuse language as identity - #201
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Add semantic_core as the first ADR 0004/issue #168 slice. A unit is the exact evidence_core source span. Language is unresolved or a primary ISO 639 subtag with optional region. Unresolved metadata keeps the Korean 측정 byte span and does not retokenize. Language tags cannot become identity. Not concept alignment, not invariance, not a topic estimator.
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📝 WalkthroughWalkthrough
ChangesSpan 기반 semantic unit
Estimated code review effort: 3 (Moderate) | ~30 minutes Merge Risk: 🟡 Moderate · up to The PR adds span-based semantic units and language metadata, but invalid language tags can still be accepted contrary to the fail-closed contract, allowing incorrect metadata to enter semantic identity handling; a future-dated traceability entry also remains. This bounded correctness issue should be fixed or explicitly accepted before merge. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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| pub const fn from_span(span: SourceSpan) -> Self { | ||
| Self { | ||
| document_id: span.document_id(), | ||
| byte_start: span.byte_start(), | ||
| byte_end: span.byte_end(), | ||
| } | ||
| } |
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📝 Info: Identity keyed on byte range only
SemanticIdentity::from_span keys on document plus byte range, omitting the scalar range and page location. Scalar coordinates are derived from the byte range within a document, so distinct byte ranges cannot share identity and the omission is safe.
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The live docstring discovery test still asserted ten crate roots, so semantic_core failed the repository-contracts job 11 != 10. Name-set comparison requires the workspace contract list and rejects extras.
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Repository contracts failed on Pushed name-set comparison against |
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In `@crates/semantic_core/src/profile.rs`:
- Around line 35-43: Update parse_bcp47 and its validation helpers to parse and
validate RFC 5646 language and region subtags, accepting registered numeric
regions such as 419 while rejecting unregistered or invalid regions such as aa
and XX. Use an explicit allowlist for the supported Korean and English scope, or
pinned IANA Language Subtag Registry data for broader support, and add tests
covering both accepted and rejected numeric-region cases.
In `@docs/TRACEABILITY.md`:
- Line 4: Replace the future date with the actual review date in
docs/TRACEABILITY.md lines 4-4, and replace the future ADR date with the actual
decision date in docs/adr/0020-span-grounded-semantic-units.md lines 5-5; do not
leave either document dated 2026-08-24.
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ARCHITECTURE.mdCHANGELOG.mdCargo.tomlREADME.mdcrates/semantic_core/Cargo.tomlcrates/semantic_core/src/error.rscrates/semantic_core/src/lib.rscrates/semantic_core/src/profile.rscrates/semantic_core/src/unit.rscrates/semantic_core/tests/crate_contract.rscrates/semantic_core/tests/language_profile_contract.rsdocs/TRACEABILITY.mddocs/adr/0004-shared-multilingual-latent-space.mddocs/adr/0020-span-grounded-semantic-units.mddocs/adr/README.mddocs/research/span-grounded-semantic-units.mddocs/research/standards-and-literature.mdscripts/check_workspace_contract.py
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| **Status:** Accepted cross-cutting traceability baseline | ||
| **Last reviewed:** 2026-08-13 | ||
| **Last reviewed:** 2026-08-24 |
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📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win
미래 날짜를 기록하지 마십시오.
현재 날짜는 2026-08-23입니다. 두 위치의 2026-08-24는 미래 날짜입니다. 실제 검토일 및 실제 ADR 결정일을 기록하십시오.
docs/TRACEABILITY.md#L4-L4:Last reviewed를 실제 검토일로 변경하십시오.docs/adr/0020-span-grounded-semantic-units.md#L5-L5: ADR 날짜를 실제 결정일로 변경하십시오.
📍 Affects 2 files
docs/TRACEABILITY.md#L4-L4(this comment)docs/adr/0020-span-grounded-semantic-units.md#L5-L5
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In `@docs/TRACEABILITY.md` at line 4, Replace the future date with the actual
review date in docs/TRACEABILITY.md lines 4-4, and replace the future ADR date
with the actual decision date in docs/adr/0020-span-grounded-semantic-units.md
lines 5-5; do not leave either document dated 2026-08-24.
The Unicode/language-tags section already recorded Phillips & Davis (2009). Drop the duplicate under topic models. Slice-specific application stays in docs/research/span-grounded-semantic-units.md.
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- Accept three-digit UN M.49 region subtags so es-419 resolves per Phillips & Davis (2009) sections 2.2.1 and 2.2.4 instead of failing closed on valid regional variants. - Document why SemanticIdentity keys on byte coordinates only. - Split the absorbed workspace-contract assertions into focused tests.
| impl PartialEq for SemanticUnit { | ||
| fn eq(&self, other: &Self) -> bool { | ||
| self.identity() == other.identity() | ||
| } | ||
| } |
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📝 Info: Equality treats same-span units with different languages as equal
SemanticUnit's equality compares only span identity and ignores the language profile, so two units over the same span but different language tags are equal. This matches the span-is-identity intent, but downstream code using these units as set/map keys will dedup across language tags.
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| fn is_primary_language_tag(tag: &str) -> bool { | ||
| match tag.split_once('-') { | ||
| None => is_letter_run(tag, 2, 3), | ||
| Some((language, region)) => { | ||
| is_letter_run(language, 2, 3) | ||
| && (is_letter_run(region, 2, 2) || is_numeric_region(region)) | ||
| } | ||
| } | ||
| } |
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📝 Info: Language parser rejects script subtags
is_primary_language_tag accepts only a 2-3 letter primary subtag with an optional alpha-2 or 3-digit region. Tags carrying a script subtag such as zh-Hans return InvalidLanguageTag. ADR 0020 scopes this as an intentional limitation, so callers must supply region-only tags.
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Current-head verification\n\n- Exact head:
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| fn is_primary_language_tag(tag: &str) -> bool { | ||
| match tag.split_once('-') { | ||
| None => is_letter_run(tag, 2, 3), | ||
| Some((language, region)) => { | ||
| is_letter_run(language, 2, 3) && is_registered_region_subtag(region) | ||
| } | ||
| } | ||
| } |
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🔍 Language subtag accepted by shape, not registry
is_primary_language_tag validates the primary subtag only via is_letter_run(language, 2, 3), so zz, qq, or private-use qaa become resolved profiles. Regions are strictly registry-checked, but the language subtag is not. This contradicts ADR 0020's claim that private-use language tags fail closed, though its non-goal disclaiming complete language identification leaves intent ambiguous.
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Exact-head Strix dispositionThe current No source failure is inferred, no check is rewritten, and no bypass is authorized. Keep this PR in |
Maintainer Verification — exact head
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* docs: add live product technical gap baseline * docs: refresh live delivery baseline * docs: record psychometric draft state * docs: refresh temporal and image delivery queue * docs: record Unicode identity PR in gap baseline * docs: refresh buyer gap baseline for psychometric PR * docs: refresh baseline for branch coverage repair * docs: refresh baseline with current PR heads * docs: record validation claim promotion head * docs: refresh live PR baseline * docs: bind baseline to refresh head * docs: refresh gap baseline current heads * docs: refresh live pull request evidence * docs: expand TEPP completion gaps and issue roadmap * docs: add product and technical gap baseline * docs: normalize buyer gap maturity * docs: remove duplicate gap baseline index entry * docs(gap): refresh live queue snapshot * docs(gap): split executable product capabilities * docs(gap): align queue snapshot timestamp * docs(gap): normalize maturity and authority fields * docs: refresh live pull request gap evidence * docs: record hot partition readiness gap * docs: refresh live product gap snapshot * docs: route Strix gap evidence to canonical owner * docs: link exact Strix failure records * docs: bound Strix evidence to public records * docs(gaps): refresh live PR snapshot * docs(gaps): bind snapshot to refreshed head * docs: refresh live buyer-gap baseline * docs: refresh live PR head register * docs: require dated exact-head gap baseline Refresh the live 2026-08-23 GitHub inventory, add a structure validator that rejects queued-Checks-as-shipped claims, and cover it with quality tests. PR #164 remains the single gap-baseline authority. * docs: drop closed duplicate #179 from live register Refresh the exact-head inventory to 93 open PRs after closing the duplicate gap-baseline snapshot. PR #164 remains the single authority. * docs: bind gap heads to the live 95-PR register Refresh the exact-head inventory to 2026-08-23T13:31:34Z and set each buyer-gap current head SHA to that snapshot, including #164, #48, #50, #63, and #157. Queued Checks remain not implemented-main. * fix(docs): honor negated queued-Checks wording in the gap validator The promotion guard treated any same-line 'queued Checks'...'implemented-main' window as a shipped claim, so correct negation failed and a wrapped affirmative claim could evade. Require an un-negated match, including across a line break. * docs: refresh 96-PR exact-head gap register Bind the live 2026-08-23T13:57:34Z inventory, including #49 extra-lag underflow coverage and hourly #180/#164 repairs. Buyer-gap current heads match that snapshot. Queued Checks are not implemented-main. * docs: replace Buyer language in the live gap register TEPP is not a purchase catalog. The gap baseline, validator, and CHANGELOG now name operator-visible gaps and operator-gap closure evidence. * docs: refresh 96-PR exact-head gap register after #49 90b08bb Bind GAP current-head SHA prefixes to the 2026-08-23T14:08:41Z live inventory, including #49 extra-process lag underflow and #164 8b78797. Queued Checks remain not implemented-main. * docs: refresh 98-PR exact-head operator-gap register Snapshot 2026-08-23T14:52:16Z. GAP-015 records this register's prior exact head 33bf824. TEPP remains an operator-gap register, not a purchase catalog. * docs: refresh 97-PR exact-head gap register after stacked #191 Drop closed stacked #191, bind GAP current-head SHAs to the 2026-08-23T15:07:33Z REST inventory, and keep queued Checks off implemented-main. * docs: refresh 97-PR exact-head gap register after #49 1e3e2eb Bind GAP current-head SHAs to the 2026-08-23T15:57:48Z REST inventory, including #49 exp/expm1 overflow rewrites. Queued Checks remain off implemented-main. * docs: refresh 99-PR exact-head gap register after stacked #193/#194 Bind GAP current-head SHAs to the 2026-08-23T16:52:27Z REST inventory. #49 nightly 1701/1702 on 1e3e2eb is logged, not treated as implemented-main. Queued Checks remain off protected-main. * docs: refresh 101-PR exact-head gap register after #49 dd6cf43 Bind GAP current-head SHAs to the 2026-08-23T17:59:26Z REST inventory, including unique-fold coverage on #49 and stacked drafts #195/#196. Queued Checks remain off implemented-main. * fix(docs): require promotion-denial wording for queued-Checks guard An unrelated `not` in `queued Checks are not required; this PR is implemented-main` was treated as negation. Only never/do not/does not/ cannot/must not plus promote/treat/make/mean licenses the span. * docs: refresh 103-PR exact-head gap register after stacked #197/#198 Bind GAP current-head SHAs to the 2026-08-23T18:48:36Z REST inventory. #49 unique-fold nightly is green on dd6cf43 and is not implemented-main. Queued Checks remain off protected-main. * docs: refresh 105-PR exact-head gap register after stacked #199/#200 Bind GAP current-head SHAs to the 2026-08-23T19:48:22Z REST inventory. #49 unique-fold nightly remains green on dd6cf43 and is not implemented-main. Queued Checks remain off protected-main. * docs: refresh 106-PR exact-head gap register after #201 span units Bind GAP-005 to #201 5344729 as a first span-unit slice only, not concept alignment and not implemented-main. Queued Checks remain off protected-main. * docs: refresh 109-PR exact-head gap register after #201 6afd650 Bind GAP-005 to the RFC 5646-once citation head and include stacked drafts #202–#204. Queued Checks remain off implemented-main. * fix(docs): deny queued-Checks promotion by governed negation Replace the fixed-window denial regex with sentence-scoped negation governance: a claim passes only when a negation cue directly governs a promotion verb inside the same sentence and no adversative conjunction separates that pair from the maturity assertion. Honest wordings whose negation precedes the phrase are accepted, while unrelated negated clauses joined by 'but' can no longer license an implemented-main claim. * docs: refresh 117-PR exact-head gap register after #205-#212 Eight new draft PRs opened in the Driver-recovery psychometric series since the last snapshot. Protected-main SHA and non-draft count (70) are unchanged -- no new mergeable work landed, this is a pure register refresh. * docs: refresh live product gap evidence * docs(changelog): align gap-baseline snapshot entry with committed register The Changed entry still described the predecessor 2026-08-23T21:46:37Z snapshot (109 open / 39 drafts) while the committed baseline document records the refreshed 2026-08-24T05:41:54Z snapshot (118 open / 48 drafts). Align the changelog narrative with the register the validator enforces so the exact-head evidence stays internally consistent. --------- Co-authored-by: seonghobae <seonghobae@users.noreply.github.com> Co-authored-by: opencode-agent <agent@contextualwisdomlab.dev>
…mantic-units # Conflicts: # CHANGELOG.md # README.md # docs/TRACEABILITY.md # docs/adr/README.md # tests/quality/test_check_docstrings.py
| sorted(path.parent.parent.name for path in crate_roots), | ||
| sorted(EXPECTED_CRATES), | ||
| ) | ||
| len(set(contract.EXPECTED_CRATES)), | ||
| len(contract.EXPECTED_CRATES), | ||
| "workspace crate inventory must not contain duplicate entries", |
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🔴 Docstring quality test no longer parses
The edit that added the name comparison closed the new self.assertEqual(...) and left the original call's arguments orphaned, so the module raises IndentationError and cannot be imported, breaking the whole quality test suite. The leftover self.assertEqual(len(crate_roots), 11) checks also contradict the 48 crates now present.
(Refers to this code)
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| fn is_primary_language_tag(tag: &str) -> bool { | ||
| match tag.split_once('-') { | ||
| None => is_letter_run(tag, 2, 3), | ||
| Some((language, region)) => { | ||
| is_letter_run(language, 2, 3) && is_registered_region_subtag(region) | ||
| } | ||
| } | ||
| } | ||
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| fn is_letter_run(value: &str, min: usize, max: usize) -> bool { | ||
| (min..=max).contains(&value.len()) && value.bytes().all(|byte| byte.is_ascii_lowercase()) | ||
| } | ||
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| // IANA Language Subtag Registry, File-Date 2026-08-08. Private-use region | ||
| // ranges and private-use records are intentionally excluded because this | ||
| // profile accepts only reproducible registered region metadata. | ||
| const REGISTERED_ALPHA2_REGION_SUBTAGS: &str = "ac ad ae af ag ai al am an ao aq ar as at au aw ax az ba bb bd be bf bg bh bi bj bl bm bn bo bq br bs bt bu bv bw by bz ca cc cd cf cg ch ci ck cl cm cn co cp cq cr cs cu cv cw cx cy cz dd de dg dj dk dm do dz ea ec ee eg eh er es et eu ez fi fj fk fm fo fr fx ga gb gd ge gf gg gh gi gl gm gn gp gq gr gs gt gu gw gy hk hm hn hr ht hu ic id ie il im in io iq ir is it je jm jo jp ke kg kh ki km kn kp kr kw ky kz la lb lc li lk lr ls lt lu lv ly ma mc md me mf mg mh mk ml mm mn mo mp mq mr ms mt mu mv mw mx my mz na nc ne nf ng ni nl no np nr nt nu nz om pa pe pf pg ph pk pl pm pn pr ps pt pw py qa re ro rs ru rw sa sb sc sd se sg sh si sj sk sl sm sn so sr ss st su sv sx sy sz ta tc td tf tg th tj tk tl tm tn to tp tr tt tv tw tz ua ug um un us uy uz va vc ve vg vi vn vu wf ws yd ye yt yu za zm zr zw"; | ||
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| const REGISTERED_NUMERIC_REGION_SUBTAGS: &[&str] = &[ | ||
| "001", "002", "003", "005", "009", "011", "013", "014", "015", "017", "018", "019", "021", | ||
| "029", "030", "034", "035", "039", "053", "054", "057", "061", "142", "143", "145", "150", | ||
| "151", "154", "155", "202", "419", | ||
| ]; | ||
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| fn is_registered_region_subtag(region: &str) -> bool { | ||
| if region.len() == 2 { | ||
| return REGISTERED_ALPHA2_REGION_SUBTAGS | ||
| .split_ascii_whitespace() | ||
| .any(|candidate| candidate == region); | ||
| } | ||
| region.len() == 3 | ||
| && region.bytes().all(|byte| byte.is_ascii_digit()) | ||
| && REGISTERED_NUMERIC_REGION_SUBTAGS.contains(®ion) | ||
| } |
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📝 Info: Language tag validation matches tests
parse_bcp47 in crates/semantic_core/src/profile.rs splits on the first hyphen, validates a 2-3 letter primary subtag, and checks the region against a registered alpha-2 list or a whitelisted M.49 numeric set. All listed test cases (including en-US-x-private and en-999 rejection) are consistent with this logic.
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| EXPECTED_CRATES: tuple[str, ...] = ( | ||
| "evidence_core", | ||
| "semantic_core", |
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📝 Info: Crate inventory aligned at 48
The workspace has 48 crates/*/src/lib.rs and EXPECTED_CRATES lists the same 48 names with no gaps, so the name-based contract check holds. The stale hardcoded count of 11 in the docstring test is reported separately.
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Purpose
First issue #168 / ADR 0004 production slice. Protected
mainalready has exactevidence_corespans. This crate binds those spans as semantic units. Language is metadata, not identity. Does not compete with draft docs PR #83 or analysis-engine PR #157.Implemented slice
semantic_core::SemanticUnitidentity is document + byte start/end.LanguageProfileisunresolvedor a primary ISO 639 subtag with optional region (RFC 5646).kokeeps the Korean측정span; no silent retokenization.SemanticIdentity::from_language_tagfails closed.docs/research/span-grounded-semantic-units.md.Non-goals
Not concept alignment, not measurement invariance (#84), not a topic estimator (ADR 0012), not Figma, not implemented-main until independent review and required Checks pass.
Verification
cargo test -p semantic_core, clippy-D warnings, nightly-2026-08-01 llvm-cov--branch8/8, workspace/docstring/documentation validators.Fixes #168 only as the first bounded slice; the remainder of the multilingual pipeline stays open.
Summary by CodeRabbit
es-419)를 지원합니다.