Enforce 100% per-file test coverage on packages/*/src

vitest coverage (v8 provider) with per-file 100% thresholds for
statements, branches, functions, and lines. Scope: our runtime source
only — types-only files, vendor/ (upstream code), and examples/
(exercised by the demo smoke test) are excluded. yarn test:coverage
runs the gate.

59 tests added to close every gap: llm generate-waterfall and adapter
disposal; assembler edge protocol (duplicate block-start, stragglers
after block-end, id fallback, usage omission, invariant violation);
the whole Inbox surface incl. the wakeup-overwrite race; LoopAgent
disposed-state throws and double-stop idempotence; config-driven agent
creation; loop backstop catches (throwing turn-start/turn-end
listeners, non-Error throws, non-JSON tool arguments); system-prompt
dynamic sections and disposer paths; tools errorMessage fallbacks and
the full schema-DSL emission matrix. Genuinely unreachable defensive
guards carry /* v8 ignore */ comments with stated reasons rather than
deletion (132 tests total).

yarn.lock

@@ -16,6 +16,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/helper-string-parser@npm:^7.29.7":
+  version: 7.29.7
+  resolution: "@babel/helper-string-parser@npm:7.29.7"
+  checksum: 10c0/194bc0f1716e396d5ffde56ad6119745fb9557662c98611590e5e454906783a4ccb21ce93056b8eb69a4909044834e45d96e50ac695bbe9e3221648fe033c06c
+  languageName: node
+  linkType: hard
+
 "@babel/helper-validator-identifier@npm:^7.29.7":
   version: 7.29.7
   resolution: "@babel/helper-validator-identifier@npm:7.29.7"
@@ -23,6 +30,34 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/parser@npm:^7.29.3":
+  version: 7.29.7
+  resolution: "@babel/parser@npm:7.29.7"
+  dependencies:
+    "@babel/types": "npm:^7.29.7"
+  bin:
+    parser: ./bin/babel-parser.js
+  checksum: 10c0/65133038f80b54a714d6027cb77cee3f9a6b5c4c6842ce674301e13947cbcbfa8055e63acaf1b84c085d34226a14425b2c2b97b829e0e226d2e8f1299942a51d
+  languageName: node
+  linkType: hard
+
+"@babel/types@npm:^7.29.0, @babel/types@npm:^7.29.7":
+  version: 7.29.7
+  resolution: "@babel/types@npm:7.29.7"
+  dependencies:
+    "@babel/helper-string-parser": "npm:^7.29.7"
+    "@babel/helper-validator-identifier": "npm:^7.29.7"
+  checksum: 10c0/b6623994c69717fa27294f5fa46d59140338e2d86c6c1c13085c84ef7d53086ee357fbf4fe9abe3dd3da75734dc77c4c0df2f90fb29e667558bb3b3fb705e88f
+  languageName: node
+  linkType: hard
+
+"@bcoe/v8-coverage@npm:^1.0.2":
+  version: 1.0.2
+  resolution: "@bcoe/v8-coverage@npm:1.0.2"
+  checksum: 10c0/1eb1dc93cc17fb7abdcef21a6e7b867d6aa99a7ec88ec8207402b23d9083ab22a8011213f04b2cf26d535f1d22dc26139b7929e6c2134c254bd1e14ba5e678c3
+  languageName: node
+  linkType: hard
+
 "@cordisjs/plugin-group@workspace:vendor/group":
   version: 0.0.0-use.local
   resolution: "@cordisjs/plugin-group@workspace:vendor/group"
@@ -144,6 +179,7 @@ __metadata:
   dependencies:
     "@stylistic/eslint-plugin": "npm:^5.10.0"
     "@types/node": "npm:^25.3.5"
+    "@vitest/coverage-v8": "npm:^4.1.8"
     dumble: "npm:^0.2.3"
     eslint: "npm:^10.4.1"
     tsx: "npm:^4.22.4"
@@ -518,13 +554,30 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@jridgewell/sourcemap-codec@npm:^1.5.5":
+"@jridgewell/resolve-uri@npm:^3.1.0":
+  version: 3.1.2
+  resolution: "@jridgewell/resolve-uri@npm:3.1.2"
+  checksum: 10c0/d502e6fb516b35032331406d4e962c21fe77cdf1cbdb49c6142bcbd9e30507094b18972778a6e27cbad756209cfe34b1a27729e6fa08a2eb92b33943f680cf1e
+  languageName: node
+  linkType: hard
+
+"@jridgewell/sourcemap-codec@npm:^1.4.14, @jridgewell/sourcemap-codec@npm:^1.5.5":
   version: 1.5.5
   resolution: "@jridgewell/sourcemap-codec@npm:1.5.5"
   checksum: 10c0/f9e538f302b63c0ebc06eecb1dd9918dd4289ed36147a0ddce35d6ea4d7ebbda243cda7b2213b6a5e1d8087a298d5cf630fb2bd39329cdecb82017023f6081a0
   languageName: node
   linkType: hard
 
+"@jridgewell/trace-mapping@npm:^0.3.31":
+  version: 0.3.31
+  resolution: "@jridgewell/trace-mapping@npm:0.3.31"
+  dependencies:
+    "@jridgewell/resolve-uri": "npm:^3.1.0"
+    "@jridgewell/sourcemap-codec": "npm:^1.4.14"
+  checksum: 10c0/4b30ec8cd56c5fd9a661f088230af01e0c1a3888d11ffb6b47639700f71225be21d1f7e168048d6d4f9449207b978a235c07c8f15c07705685d16dc06280e9d9
+  languageName: node
+  linkType: hard
+
 "@napi-rs/wasm-runtime@npm:^1.1.4":
   version: 1.1.5
   resolution: "@napi-rs/wasm-runtime@npm:1.1.5"
@@ -922,6 +975,30 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@vitest/coverage-v8@npm:^4.1.8":
+  version: 4.1.8
+  resolution: "@vitest/coverage-v8@npm:4.1.8"
+  dependencies:
+    "@bcoe/v8-coverage": "npm:^1.0.2"
+    "@vitest/utils": "npm:4.1.8"
+    ast-v8-to-istanbul: "npm:^1.0.0"
+    istanbul-lib-coverage: "npm:^3.2.2"
+    istanbul-lib-report: "npm:^3.0.1"
+    istanbul-reports: "npm:^3.2.0"
+    magicast: "npm:^0.5.2"
+    obug: "npm:^2.1.1"
+    std-env: "npm:^4.0.0-rc.1"
+    tinyrainbow: "npm:^3.1.0"
+  peerDependencies:
+    "@vitest/browser": 4.1.8
+    vitest: 4.1.8
+  peerDependenciesMeta:
+    "@vitest/browser":
+      optional: true
+  checksum: 10c0/e3419115fa413e19bda5edd72c8394b255d418af75278b2cd74341257399f8e5921f78b966a547ba8d67ac8268ccdd5af019230084cc1b9a3fc8fae8283ae76b
+  languageName: node
+  linkType: hard
+
 "@vitest/expect@npm:4.1.8":
   version: 4.1.8
   resolution: "@vitest/expect@npm:4.1.8"
@@ -1055,6 +1132,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"ast-v8-to-istanbul@npm:^1.0.0":
+  version: 1.0.4
+  resolution: "ast-v8-to-istanbul@npm:1.0.4"
+  dependencies:
+    "@jridgewell/trace-mapping": "npm:^0.3.31"
+    estree-walker: "npm:^3.0.3"
+    js-tokens: "npm:^10.0.0"
+  checksum: 10c0/48305cc748fcd0c8a84cf5750cca9e220e1cdb977286917e79a3182cd1eda9a6c73db7afb6526d86f3336684d4662b684db7c8a925448122603df048097b1d00
+  languageName: node
+  linkType: hard
+
 "balanced-match@npm:^4.0.2":
   version: 4.0.4
   resolution: "balanced-match@npm:4.0.4"
@@ -1627,6 +1715,20 @@ __metadata:
   languageName: node
   linkType: hard
 
+"has-flag@npm:^4.0.0":
+  version: 4.0.0
+  resolution: "has-flag@npm:4.0.0"
+  checksum: 10c0/2e789c61b7888d66993e14e8331449e525ef42aac53c627cc53d1c3334e768bcb6abdc4f5f0de1478a25beec6f0bd62c7549058b7ac53e924040d4f301f02fd1
+  languageName: node
+  linkType: hard
+
+"html-escaper@npm:^2.0.0":
+  version: 2.0.2
+  resolution: "html-escaper@npm:2.0.2"
+  checksum: 10c0/208e8a12de1a6569edbb14544f4567e6ce8ecc30b9394fcaa4e7bb1e60c12a7c9a1ed27e31290817157e8626f3a4f29e76c8747030822eb84a6abb15c255f0a0
+  languageName: node
+  linkType: hard
+
 "ignore@npm:^5.2.0":
   version: 5.3.2
   resolution: "ignore@npm:5.3.2"
@@ -1685,6 +1787,41 @@ __metadata:
   languageName: node
   linkType: hard
 
+"istanbul-lib-coverage@npm:^3.0.0, istanbul-lib-coverage@npm:^3.2.2":
+  version: 3.2.2
+  resolution: "istanbul-lib-coverage@npm:3.2.2"
+  checksum: 10c0/6c7ff2106769e5f592ded1fb418f9f73b4411fd5a084387a5410538332b6567cd1763ff6b6cadca9b9eb2c443cce2f7ea7d7f1b8d315f9ce58539793b1e0922b
+  languageName: node
+  linkType: hard
+
+"istanbul-lib-report@npm:^3.0.0, istanbul-lib-report@npm:^3.0.1":
+  version: 3.0.1
+  resolution: "istanbul-lib-report@npm:3.0.1"
+  dependencies:
+    istanbul-lib-coverage: "npm:^3.0.0"
+    make-dir: "npm:^4.0.0"
+    supports-color: "npm:^7.1.0"
+  checksum: 10c0/84323afb14392de8b6a5714bd7e9af845cfbd56cfe71ed276cda2f5f1201aea673c7111901227ee33e68e4364e288d73861eb2ed48f6679d1e69a43b6d9b3ba7
+  languageName: node
+  linkType: hard
+
+"istanbul-reports@npm:^3.2.0":
+  version: 3.2.0
+  resolution: "istanbul-reports@npm:3.2.0"
+  dependencies:
+    html-escaper: "npm:^2.0.0"
+    istanbul-lib-report: "npm:^3.0.0"
+  checksum: 10c0/d596317cfd9c22e1394f22a8d8ba0303d2074fe2e971887b32d870e4b33f8464b10f8ccbe6847808f7db485f084eba09e6c2ed706b3a978e4b52f07085b8f9bc
+  languageName: node
+  linkType: hard
+
+"js-tokens@npm:^10.0.0":
+  version: 10.0.0
+  resolution: "js-tokens@npm:10.0.0"
+  checksum: 10c0/a93498747812ba3e0c8626f95f75ab29319f2a13613a0de9e610700405760931624433a0de59eb7c27ff8836e526768fb20783861b86ef89be96676f2c996b64
+  languageName: node
+  linkType: hard
+
 "js-tokens@npm:^4.0.0":
   version: 4.0.0
   resolution: "js-tokens@npm:4.0.0"
@@ -1897,6 +2034,26 @@ __metadata:
   languageName: node
   linkType: hard
 
+"magicast@npm:^0.5.2":
+  version: 0.5.3
+  resolution: "magicast@npm:0.5.3"
+  dependencies:
+    "@babel/parser": "npm:^7.29.3"
+    "@babel/types": "npm:^7.29.0"
+    source-map-js: "npm:^1.2.1"
+  checksum: 10c0/e288c027ae5f2a794a59148cb114f4b60f1d5c03090de6c60b4d187f12d1de9158779cd7c39cea391609f4f10cd7ea737929f25f7ce44f7a96ba96ec1a477e39
+  languageName: node
+  linkType: hard
+
+"make-dir@npm:^4.0.0":
+  version: 4.0.0
+  resolution: "make-dir@npm:4.0.0"
+  dependencies:
+    semver: "npm:^7.5.3"
+  checksum: 10c0/69b98a6c0b8e5c4fe9acb61608a9fbcfca1756d910f51e5dbe7a9e5cfb74fca9b8a0c8a0ffdf1294a740826c1ab4871d5bf3f62f72a3049e5eac6541ddffed68
+  languageName: node
+  linkType: hard
+
 "merge2@npm:^1.3.0":
   version: 1.4.1
   resolution: "merge2@npm:1.4.1"
@@ -2210,7 +2367,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"semver@npm:^7.3.5, semver@npm:^7.7.3":
+"semver@npm:^7.3.5, semver@npm:^7.5.3, semver@npm:^7.7.3":
   version: 7.8.4
   resolution: "semver@npm:7.8.4"
   bin:
@@ -2270,6 +2427,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"supports-color@npm:^7.1.0":
+  version: 7.2.0
+  resolution: "supports-color@npm:7.2.0"
+  dependencies:
+    has-flag: "npm:^4.0.0"
+  checksum: 10c0/afb4c88521b8b136b5f5f95160c98dee7243dc79d5432db7efc27efb219385bbc7d9427398e43dd6cc730a0f87d5085ce1652af7efbe391327bc0a7d0f7fc124
+  languageName: node
+  linkType: hard
+
 "supports-color@npm:^9.4.0":
   version: 9.4.0
   resolution: "supports-color@npm:9.4.0"