diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 4df3f44c..78c8b01e 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -6,6 +6,7 @@ on:
   pull_request:
     paths:
       - "backend/**"
+      - "frontend/**"
       - ".github/workflows/go.yml"
 
 permissions:
@@ -68,3 +69,42 @@ jobs:
           working-directory: backend
           # Blocking on the full ruleset: the tree is clean at zero findings, so
           # any new issue fails CI rather than being grandfathered.
+
+  # gen-verify regenerates the code-first pipeline end to end — openapi.yaml from
+  # the Go types, then the frontend TS client from that spec — and fails if the
+  # committed copies are stale. The backend drift is also covered by the apispec
+  # tests; this job additionally guards the frontend artifact, which nothing else
+  # checks (someone changing a Go contract type must run `go generate ./...` and
+  # `npm run gen:api`, then commit).
+  gen-verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: backend/go.mod
+          cache: false
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Generate OpenAPI from Go
+        working-directory: backend
+        run: go generate ./...
+
+      - name: Generate TypeScript from OpenAPI
+        working-directory: frontend
+        run: |
+          npm ci
+          npm run gen:api
+
+      - name: Fail on stale generated files
+        run: |
+          if ! git diff --exit-code; then
+            echo "::error::Generated files are stale. Run 'go generate ./...' in backend and 'npm run gen:api' in frontend, then commit."
+            exit 1
+          fi
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 7eeda0af..7547daa5 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -7,11 +7,40 @@
     "": {
       "name": "agent-orchestrator-frontend",
       "version": "0.0.0",
+      "dependencies": {
+        "openapi-fetch": "^0.17.0"
+      },
       "devDependencies": {
         "electron": "^33.0.0",
+        "openapi-typescript": "^7.13.0",
         "typescript": "^5.6.0"
       }
     },
+    "node_modules/@babel/code-frame": {
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.29.7.tgz",
+      "integrity": "sha512-Aup7aUOfpbAUg2ROOJN6Iw5f9DMBlzu0mIkm/malLQFN/YQgO48wCj0Kxa3sEHJvPVFg7siR+qRInwXd2qhQKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-validator-identifier": "^7.29.7",
+        "js-tokens": "^4.0.0",
+        "picocolors": "^1.1.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-validator-identifier": {
+      "version": "7.29.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.29.7.tgz",
+      "integrity": "sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
     "node_modules/@electron/get": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@electron/get/-/get-2.0.3.tgz",
@@ -34,6 +63,52 @@
         "global-agent": "^3.0.0"
       }
     },
+    "node_modules/@redocly/ajv": {
+      "version": "8.11.2",
+      "resolved": "https://registry.npmjs.org/@redocly/ajv/-/ajv-8.11.2.tgz",
+      "integrity": "sha512-io1JpnwtIcvojV7QKDUSIuMN/ikdOUd1ReEnUnMKGfDVridQZ31J0MmIuqwuRjWDZfmvr+Q0MqCcfHM2gTivOg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "fast-deep-equal": "^3.1.1",
+        "json-schema-traverse": "^1.0.0",
+        "require-from-string": "^2.0.2",
+        "uri-js-replace": "^1.0.1"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
+      }
+    },
+    "node_modules/@redocly/config": {
+      "version": "0.22.0",
+      "resolved": "https://registry.npmjs.org/@redocly/config/-/config-0.22.0.tgz",
+      "integrity": "sha512-gAy93Ddo01Z3bHuVdPWfCwzgfaYgMdaZPcfL7JZ7hWJoK9V0lXDbigTWkhiPFAaLWzbOJ+kbUQG1+XwIm0KRGQ==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@redocly/openapi-core": {
+      "version": "1.34.15",
+      "resolved": "https://registry.npmjs.org/@redocly/openapi-core/-/openapi-core-1.34.15.tgz",
+      "integrity": "sha512-HAwCnNyKcs5XGQqms+9t7OdAPM/5TDstmhF+0i7tdCFato2QKuYIlyWETwkXd8c5zbltr1oB+6y9NTeQLr2d6Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@redocly/ajv": "8.11.2",
+        "@redocly/config": "0.22.0",
+        "colorette": "1.4.0",
+        "https-proxy-agent": "7.0.6",
+        "js-levenshtein": "1.1.6",
+        "js-yaml": "4.1.1",
+        "minimatch": "5.1.9",
+        "pluralize": "8.0.0",
+        "yaml-ast-parser": "0.0.43"
+      },
+      "engines": {
+        "node": ">=18.17.0",
+        "npm": ">=9.5.0"
+      }
+    },
     "node_modules/@sindresorhus/is": {
       "version": "4.6.0",
       "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-4.6.0.tgz",
@@ -121,6 +196,40 @@
         "@types/node": "*"
       }
     },
+    "node_modules/agent-base": {
+      "version": "7.1.4",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.4.tgz",
+      "integrity": "sha512-MnA+YT8fwfJPgBx3m60MNqakm30XOkyIoH1y6huTQvC0PwZG7ki8NacLBcrPbNoo8vEZy7Jpuk7+jMO+CUovTQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 14"
+      }
+    },
+    "node_modules/ansi-colors": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-4.1.3.tgz",
+      "integrity": "sha512-/6w/C21Pm1A7aZitlI5Ni/2J6FFQN8i1Cvz3kHABAAbw93v/NlvKdVOqz7CCWz/3iv/JplRSEEZ83XION15ovw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/argparse": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
+      "dev": true,
+      "license": "Python-2.0"
+    },
+    "node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/boolean": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/boolean/-/boolean-3.2.0.tgz",
@@ -130,6 +239,16 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/brace-expansion": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.1.1.tgz",
+      "integrity": "sha512-WR1cURNjuvBLMZBMbqM0UoE+WAfdUcEV1ccD8PVBVOI+Z3ND4+SZbN8RsfT2bMuG1qwz5RFvPukSZm5fF2D5eA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
     "node_modules/buffer-crc32": {
       "version": "0.2.13",
       "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz",
@@ -169,6 +288,13 @@
         "node": ">=8"
       }
     },
+    "node_modules/change-case": {
+      "version": "5.4.4",
+      "resolved": "https://registry.npmjs.org/change-case/-/change-case-5.4.4.tgz",
+      "integrity": "sha512-HRQyTk2/YPEkt9TnUPbOpr64Uw3KOicFWPVBb+xiHvd6eBx/qPr9xqfBFDT8P2vWsvvz4jbEkfDe71W3VyNu2w==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/clone-response": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/clone-response/-/clone-response-1.0.3.tgz",
@@ -182,6 +308,13 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/colorette": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.4.0.tgz",
+      "integrity": "sha512-Y2oEozpomLn7Q3HFP7dpww7AtMJplbM9lGZP6RDfHqmbeRjiwRg4n6VM6j4KLmRke85uWEI7JqF17f3pqdRA0g==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/debug": {
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
@@ -389,6 +522,13 @@
         "@types/yauzl": "^2.9.1"
       }
     },
+    "node_modules/fast-deep-equal": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/fd-slicer": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.1.0.tgz",
@@ -563,6 +703,63 @@
         "node": ">=10.19.0"
       }
     },
+    "node_modules/https-proxy-agent": {
+      "version": "7.0.6",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-7.0.6.tgz",
+      "integrity": "sha512-vK9P5/iUfdl95AI+JVyUuIcVtd4ofvtrOr3HNtM2yxC9bnMbEdp3x01OhQNnjb8IJYi38VlTE3mBXwcfvywuSw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "agent-base": "^7.1.2",
+        "debug": "4"
+      },
+      "engines": {
+        "node": ">= 14"
+      }
+    },
+    "node_modules/index-to-position": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/index-to-position/-/index-to-position-1.2.0.tgz",
+      "integrity": "sha512-Yg7+ztRkqslMAS2iFaU+Oa4KTSidr63OsFGlOrJoW981kIYO3CGCS3wA95P1mUi/IVSJkn0D479KTJpVpvFNuw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/js-levenshtein": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/js-levenshtein/-/js-levenshtein-1.1.6.tgz",
+      "integrity": "sha512-X2BB11YZtrRqY4EnQcLX5Rh373zbK4alC1FW7D7MBhL2gtcC17cTnr6DmfHZeS0s2rTHjUTMMHfG7gO8SSdw+g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/js-tokens": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/js-yaml": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+      "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "argparse": "^2.0.1"
+      },
+      "bin": {
+        "js-yaml": "bin/js-yaml.js"
+      }
+    },
     "node_modules/json-buffer": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.1.tgz",
@@ -570,6 +767,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/json-schema-traverse": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/json-stringify-safe": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz",
@@ -632,6 +836,19 @@
         "node": ">=4"
       }
     },
+    "node_modules/minimatch": {
+      "version": "5.1.9",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.9.tgz",
+      "integrity": "sha512-7o1wEA2RyMP7Iu7GNba9vc0RWWGACJOCZBJX2GJWip0ikV+wcOsgVuY9uE8CPiyQhkGFSlhuSkZPavN7u1c2Fw==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -673,6 +890,42 @@
         "wrappy": "1"
       }
     },
+    "node_modules/openapi-fetch": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/openapi-fetch/-/openapi-fetch-0.17.0.tgz",
+      "integrity": "sha512-PsbZR1wAPcG91eEthKhN+Zn92FMHxv+/faECIwjXdxfTODGSGegYv0sc1Olz+HYPvKOuoXfp+0pA2XVt2cI0Ig==",
+      "license": "MIT",
+      "dependencies": {
+        "openapi-typescript-helpers": "^0.1.0"
+      }
+    },
+    "node_modules/openapi-typescript": {
+      "version": "7.13.0",
+      "resolved": "https://registry.npmjs.org/openapi-typescript/-/openapi-typescript-7.13.0.tgz",
+      "integrity": "sha512-EFP392gcqXS7ntPvbhBzbF8TyBA+baIYEm791Hy5YkjDYKTnk/Tn5OQeKm5BIZvJihpp8Zzr4hzx0Irde1LNGQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@redocly/openapi-core": "^1.34.6",
+        "ansi-colors": "^4.1.3",
+        "change-case": "^5.4.4",
+        "parse-json": "^8.3.0",
+        "supports-color": "^10.2.2",
+        "yargs-parser": "^21.1.1"
+      },
+      "bin": {
+        "openapi-typescript": "bin/cli.js"
+      },
+      "peerDependencies": {
+        "typescript": "^5.x"
+      }
+    },
+    "node_modules/openapi-typescript-helpers": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/openapi-typescript-helpers/-/openapi-typescript-helpers-0.1.0.tgz",
+      "integrity": "sha512-OKTGPthhivLw/fHz6c3OPtg72vi86qaMlqbJuVJ23qOvQ+53uw1n7HdmkJFibloF7QEjDrDkzJiOJuockM/ljw==",
+      "license": "MIT"
+    },
     "node_modules/p-cancelable": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-2.1.1.tgz",
@@ -683,6 +936,37 @@
         "node": ">=8"
       }
     },
+    "node_modules/parse-json": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-8.3.0.tgz",
+      "integrity": "sha512-ybiGyvspI+fAoRQbIPRddCcSTV9/LsJbf0e/S85VLowVGzRmokfneg2kwVW/KU5rOXrPSbF1qAKPMgNTqqROQQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/code-frame": "^7.26.2",
+        "index-to-position": "^1.1.0",
+        "type-fest": "^4.39.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/parse-json/node_modules/type-fest": {
+      "version": "4.41.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-4.41.0.tgz",
+      "integrity": "sha512-TeTSQ6H5YHvpqVwBRcnLDCBnDOHWYu7IvGbHT6N8AOymcr9PJGjc1GTtiWZTYg0NCgYwvnYWEkVChQAr9bjfwA==",
+      "dev": true,
+      "license": "(MIT OR CC0-1.0)",
+      "engines": {
+        "node": ">=16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/pend": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
@@ -690,6 +974,23 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/picocolors": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
+      "integrity": "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==",
+      "dev": true,
+      "license": "ISC"
+    },
+    "node_modules/pluralize": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/pluralize/-/pluralize-8.0.0.tgz",
+      "integrity": "sha512-Nc3IT5yHzflTfbjgqWcCPpo7DaKy4FnpB0l/zCAW0Tc7jxAiuqSxHasntB3D7887LSrA93kDJ9IXovxJYxyLCA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/progress": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
@@ -724,6 +1025,16 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/require-from-string": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/resolve-alpn": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/resolve-alpn/-/resolve-alpn-1.2.1.tgz",
@@ -819,6 +1130,19 @@
         "node": ">= 8.0"
       }
     },
+    "node_modules/supports-color": {
+      "version": "10.2.2",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-10.2.2.tgz",
+      "integrity": "sha512-SS+jx45GF1QjgEXQx4NJZV9ImqmO2NPz5FNsIHrsDjh2YsHnawpan7SNQ1o8NuhrbHZy9AZhIoCUiCeaW/C80g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/supports-color?sponsor=1"
+      }
+    },
     "node_modules/type-fest": {
       "version": "0.13.1",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.13.1.tgz",
@@ -864,6 +1188,13 @@
         "node": ">= 4.0.0"
       }
     },
+    "node_modules/uri-js-replace": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/uri-js-replace/-/uri-js-replace-1.0.1.tgz",
+      "integrity": "sha512-W+C9NWNLFOoBI2QWDp4UT9pv65r2w5Cx+3sTYFvtMdDBxkKt1syCqsUdSFAChbEe1uK5TfS04wt/nGwmaeIQ0g==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -871,6 +1202,23 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/yaml-ast-parser": {
+      "version": "0.0.43",
+      "resolved": "https://registry.npmjs.org/yaml-ast-parser/-/yaml-ast-parser-0.0.43.tgz",
+      "integrity": "sha512-2PTINUwsRqSd+s8XxKaJWQlUuEMHJQyEuh2edBbW8KNJz0SJPwUSD2zRWqezFEdN7IzAgeuYHFUCF7o8zRdZ0A==",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
+    "node_modules/yargs-parser": {
+      "version": "21.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/yauzl": {
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index b58407e8..1c744fb7 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -7,10 +7,15 @@
   "scripts": {
     "build": "tsc",
     "typecheck": "tsc --noEmit",
+    "gen:api": "openapi-typescript ../backend/internal/httpd/apispec/openapi.yaml -o src/api/schema.d.ts",
     "start": "npm run build && electron ."
   },
+  "dependencies": {
+    "openapi-fetch": "^0.17.0"
+  },
   "devDependencies": {
     "electron": "^33.0.0",
+    "openapi-typescript": "^7.13.0",
     "typescript": "^5.6.0"
   }
 }
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
new file mode 100644
index 00000000..4b4585c8
--- /dev/null
+++ b/frontend/src/api/client.ts
@@ -0,0 +1,11 @@
+import createClient from "openapi-fetch";
+import type { paths } from "./schema";
+
+// Typed client for the daemon's loopback /api/v1 surface. Request and response
+// types come from ./schema.d.ts, which is generated from the backend OpenAPI
+// document (`npm run gen:api`) — never hand-maintained.
+export const api = createClient<paths>({ baseUrl: "http://127.0.0.1:3001" });
+
+// Re-export the generated component schemas for convenient use in the renderer,
+// e.g. components["schemas"]["Project"], "Session", "APIError".
+export type { components, paths } from "./schema";
diff --git a/frontend/src/api/schema.d.ts b/frontend/src/api/schema.d.ts
new file mode 100644
index 00000000..0649068f
--- /dev/null
+++ b/frontend/src/api/schema.d.ts
@@ -0,0 +1,879 @@
+/**
+ * This file was auto-generated by openapi-typescript.
+ * Do not make direct changes to the file.
+ */
+
+export interface paths {
+    "/api/v1/orchestrators": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put?: never;
+        /** Spawn an orchestrator session */
+        post: operations["spawnOrchestrator"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/projects": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /** List all registered projects (active + degraded) */
+        get: operations["listProjects"];
+        put?: never;
+        /** Register a new project from a git repository path */
+        post: operations["addProject"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/projects/{id}": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /** Fetch one project; discriminates ok vs degraded */
+        get: operations["getProject"];
+        put?: never;
+        post?: never;
+        /** Remove a project; stops sessions, cleans workspaces, unregisters */
+        delete: operations["removeProject"];
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/sessions": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /** List sessions */
+        get: operations["listSessions"];
+        put?: never;
+        /** Spawn a new agent session */
+        post: operations["spawnSession"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/sessions/{sessionId}": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        /** Fetch one session */
+        get: operations["getSession"];
+        put?: never;
+        post?: never;
+        delete?: never;
+        options?: never;
+        head?: never;
+        /** Rename a session display name */
+        patch: operations["renameSession"];
+        trace?: never;
+    };
+    "/api/v1/sessions/{sessionId}/kill": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put?: never;
+        /** Mark a session terminated and tear down runtime/workspace resources */
+        post: operations["killSession"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/sessions/{sessionId}/restore": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put?: never;
+        /** Restore a terminated session */
+        post: operations["restoreSession"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+    "/api/v1/sessions/{sessionId}/send": {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        get?: never;
+        put?: never;
+        /** Send a message to a running session's agent */
+        post: operations["sendSessionMessage"];
+        delete?: never;
+        options?: never;
+        head?: never;
+        patch?: never;
+        trace?: never;
+    };
+}
+export type webhooks = Record<string, never>;
+export interface components {
+    schemas: {
+        APIError: {
+            code: string;
+            details?: {
+                [key: string]: unknown;
+            };
+            error: string;
+            message: string;
+            requestId?: string;
+        };
+        AddProjectInput: {
+            name?: null | string;
+            path: string;
+            projectId?: null | string;
+        };
+        DegradedProject: {
+            id: string;
+            name: string;
+            path: string;
+            resolveError: string;
+        };
+        DomainActivity: {
+            /** Format: date-time */
+            lastActivityAt: string;
+            state: string;
+        };
+        KillSessionResponse: {
+            freed?: boolean;
+            ok: boolean;
+            sessionId: string;
+        };
+        ListProjectsResponse: {
+            projects: components["schemas"]["ProjectSummary"][];
+        };
+        ListSessionsResponse: {
+            sessions: components["schemas"]["Session"][];
+        };
+        OrchestratorResponse: {
+            id: string;
+            projectId: string;
+            projectName?: string;
+        };
+        Project: {
+            agent?: string;
+            defaultBranch: string;
+            id: string;
+            name: string;
+            path: string;
+            repo: string;
+            scm?: components["schemas"]["SCMConfig"];
+            tracker?: components["schemas"]["TrackerConfig"];
+        };
+        ProjectGetResponse: {
+            project: components["schemas"]["ProjectOrDegraded"];
+            /** @enum {string} */
+            status: "ok" | "degraded";
+        };
+        ProjectOrDegraded: components["schemas"]["Project"] | components["schemas"]["DegradedProject"];
+        ProjectResponse: {
+            project: components["schemas"]["Project"];
+        };
+        ProjectSummary: {
+            id: string;
+            name: string;
+            resolveError?: string;
+            sessionPrefix: string;
+        };
+        RemoveProjectResult: {
+            projectId: string;
+            removedStorageDir: boolean;
+        };
+        RenameSessionRequest: {
+            displayName: string;
+        };
+        RestoreSessionResponse: {
+            ok: boolean;
+            session: components["schemas"]["Session"];
+            sessionId: string;
+        };
+        SCMConfig: {
+            package?: string;
+            path?: string;
+            plugin?: string;
+            webhook?: components["schemas"]["SCMWebhookConfig"];
+        };
+        SCMWebhookConfig: {
+            deliveryHeader?: string;
+            enabled?: null | boolean;
+            eventHeader?: string;
+            maxBodyBytes?: number;
+            path?: string;
+            secretEnvVar?: string;
+            signatureHeader?: string;
+        };
+        SendSessionMessageRequest: {
+            message: string;
+        };
+        SendSessionMessageResponse: {
+            message: string;
+            ok: boolean;
+            sessionId: string;
+        };
+        Session: {
+            activity: components["schemas"]["DomainActivity"];
+            /** Format: date-time */
+            createdAt: string;
+            harness?: string;
+            id: string;
+            isTerminated: boolean;
+            issueId?: string;
+            kind: string;
+            projectId: string;
+            status: string;
+            /** Format: date-time */
+            updatedAt: string;
+        };
+        SessionResponse: {
+            session: components["schemas"]["Session"];
+        };
+        SpawnOrchestratorRequest: {
+            clean?: boolean;
+            projectId: string;
+        };
+        SpawnOrchestratorResponse: {
+            orchestrator: components["schemas"]["OrchestratorResponse"];
+        };
+        SpawnSessionRequest: {
+            agentRules?: string;
+            branch?: string;
+            /** @enum {string} */
+            harness?: "claude-code" | "codex" | "aider" | "opencode";
+            issueId?: string;
+            /** @enum {string} */
+            kind?: "worker" | "orchestrator";
+            projectId: string;
+            prompt?: string;
+        };
+        TrackerConfig: {
+            package?: string;
+            path?: string;
+            plugin?: string;
+        };
+    };
+    responses: never;
+    parameters: never;
+    requestBodies: never;
+    headers: never;
+    pathItems: never;
+}
+export type $defs = Record<string, never>;
+export interface operations {
+    spawnOrchestrator: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["SpawnOrchestratorRequest"];
+            };
+        };
+        responses: {
+            /** @description Created */
+            201: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["SpawnOrchestratorResponse"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Implemented */
+            501: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    listProjects: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ListProjectsResponse"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    addProject: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["AddProjectInput"];
+            };
+        };
+        responses: {
+            /** @description Created */
+            201: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ProjectResponse"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Conflict */
+            409: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    getProject: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Project identifier (registry key). */
+                id: string;
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ProjectGetResponse"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    removeProject: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Project identifier (registry key). */
+                id: string;
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["RemoveProjectResult"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    listSessions: {
+        parameters: {
+            query?: {
+                /** @description Project id filter. */
+                project?: string;
+                /** @description When true, return non-terminated sessions; when false, return terminated sessions. */
+                active?: null | boolean;
+                /** @description When true, return only orchestrator sessions. */
+                orchestratorOnly?: null | boolean;
+                /** @description When true, return only fresh non-terminated sessions. */
+                fresh?: null | boolean;
+            };
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ListSessionsResponse"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    spawnSession: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path?: never;
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["SpawnSessionRequest"];
+            };
+        };
+        responses: {
+            /** @description Created */
+            201: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["SessionResponse"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    getSession: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Session identifier, e.g. project-1. */
+                sessionId: string;
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["SessionResponse"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    renameSession: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Session identifier, e.g. project-1. */
+                sessionId: string;
+            };
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["RenameSessionRequest"];
+            };
+        };
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["SessionResponse"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Implemented */
+            501: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    killSession: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Session identifier, e.g. project-1. */
+                sessionId: string;
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["KillSessionResponse"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Conflict */
+            409: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    restoreSession: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Session identifier, e.g. project-1. */
+                sessionId: string;
+            };
+            cookie?: never;
+        };
+        requestBody?: never;
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["RestoreSessionResponse"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Conflict */
+            409: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+    sendSessionMessage: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                /** @description Session identifier, e.g. project-1. */
+                sessionId: string;
+            };
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["SendSessionMessageRequest"];
+            };
+        };
+        responses: {
+            /** @description OK */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["SendSessionMessageResponse"];
+                };
+            };
+            /** @description Bad Request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Not Found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+            /** @description Internal Server Error */
+            500: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["APIError"];
+                };
+            };
+        };
+    };
+}