Improve session polling performance and add cross-platform script support

* fix: harden test suite for Windows/CRLF cross-platform compatibility - oss-readiness: use \r?\n in .gitignore regex boundaries for CRLF support - oss-readiness: update PUBLIC_FILES to match actual repo filenames - phase9-routes-commands: invoke node directly instead of spawn('npm') to avoid ENOENT on Windows where npm requires .cmd extension - phase9-routes-commands: normalize path separators in export path assertion - ui-render-smoke: normalize CRLF to LF before multiline source includes() - usage-cost: normalize backslashes in sourcePath before glob assertion All 87 tests now pass on Windows. * fix: add cross-platform Node.js UI smoke script for Windows compatibility * fix: improve session polling performance and add cross-platform script support (#13) - Reduce monitor polling interval from 5s to 30s to cut background I/O by 83% - Add incremental status queries in snapshot() — only refresh active/new sessions instead of all 500+ - Replace O(n) usage-cost cache key serialization with O(1) generatedAt-based key - Use cross-env for all env-prefixed npm scripts to fix Windows cmd compatibility - Reduce default session preview historyLimit and pageSize for faster dashboard loads * fix: add final status refresh for sessions leaving active state When a session transitions from running/blocked to idle/error, perform one last status query to capture final usage metrics (cost, tokens). Without this, cachedStatuses would retain pre-completion values permanently, causing stale aggregate usage/budget totals. Addresses review feedback on PR #17. * fix: tune polling interval to 10s and use content-based cache key - Change sessionsList polling from 30s to 10s as a compromise between the original 5s (too aggressive) and the PR's 30s (too slow for near real-time UX). - Replace generatedAt-based cache key in buildUsageCostCacheKey with content-based fingerprint using session.state and status.updatedAt, so the cache only invalidates when data actually changes.
2026-08-14 00:47:58 +00:00 · 2026-03-14 09:49:45 +01:00
parent fd0ac1761a
commit 06e88e50b3
5 changed files with 467 additions and 26 deletions
@@ -6,14 +6,14 @@
  "type": "commonjs",
  "scripts": {
    "dev": "node --import tsx src/index.ts",
-    "dev:continuous": "MONITOR_CONTINUOUS=true node --import tsx src/index.ts",
-    "dev:ui": "UI_MODE=true node --import tsx src/index.ts",
+    "dev:continuous": "cross-env MONITOR_CONTINUOUS=true node --import tsx src/index.ts",
+    "dev:ui": "cross-env UI_MODE=true node --import tsx src/index.ts",
    "smoke:ui": "node scripts/ui-smoke.js",
-    "command:backup-export": "APP_COMMAND=backup-export node --import tsx src/index.ts",
+    "command:backup-export": "cross-env APP_COMMAND=backup-export node --import tsx src/index.ts",
    "avatars:export": "node --import tsx scripts/export-staff-avatars.ts",
-    "command:import-validate": "APP_COMMAND=import-validate node --import tsx src/index.ts",
-    "command:acks-prune": "APP_COMMAND=acks-prune node --import tsx src/index.ts",
-    "command:task-heartbeat": "APP_COMMAND=task-heartbeat node --import tsx src/index.ts",
+    "command:import-validate": "cross-env APP_COMMAND=import-validate node --import tsx src/index.ts",
+    "command:acks-prune": "cross-env APP_COMMAND=acks-prune node --import tsx src/index.ts",
+    "command:task-heartbeat": "cross-env APP_COMMAND=task-heartbeat node --import tsx src/index.ts",
    "test": "node --import tsx --test test/**/*.test.ts",
    "build": "tsc -p tsconfig.json",
    "release:audit": "bash scripts/release-audit.sh",
@@ -38,6 +38,7 @@
  },
  "devDependencies": {
    "@types/node": "^22.13.10",
+    "cross-env": "^7.0.3",
    "tsx": "^4.20.0",
    "typescript": "^5.8.2"
  }
@@ -0,0 +1,398 @@
+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+
+  .:
+    devDependencies:
+      '@types/node':
+        specifier: ^22.13.10
+        version: 22.19.15
+      cross-env:
+        specifier: ^7.0.3
+        version: 7.0.3
+      tsx:
+        specifier: ^4.20.0
+        version: 4.21.0
+      typescript:
+        specifier: ^5.8.2
+        version: 5.9.3
+
+packages:
+
+  '@esbuild/aix-ppc64@0.27.4':
+    resolution: {integrity: sha512-cQPwL2mp2nSmHHJlCyoXgHGhbEPMrEEU5xhkcy3Hs/O7nGZqEpZ2sUtLaL9MORLtDfRvVl2/3PAuEkYZH0Ty8Q==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [aix]
+
+  '@esbuild/android-arm64@0.27.4':
+    resolution: {integrity: sha512-gdLscB7v75wRfu7QSm/zg6Rx29VLdy9eTr2t44sfTW7CxwAtQghZ4ZnqHk3/ogz7xao0QAgrkradbBzcqFPasw==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [android]
+
+  '@esbuild/android-arm@0.27.4':
+    resolution: {integrity: sha512-X9bUgvxiC8CHAGKYufLIHGXPJWnr0OCdR0anD2e21vdvgCI8lIfqFbnoeOz7lBjdrAGUhqLZLcQo6MLhTO2DKQ==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [android]
+
+  '@esbuild/android-x64@0.27.4':
+    resolution: {integrity: sha512-PzPFnBNVF292sfpfhiyiXCGSn9HZg5BcAz+ivBuSsl6Rk4ga1oEXAamhOXRFyMcjwr2DVtm40G65N3GLeH1Lvw==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [android]
+
+  '@esbuild/darwin-arm64@0.27.4':
+    resolution: {integrity: sha512-b7xaGIwdJlht8ZFCvMkpDN6uiSmnxxK56N2GDTMYPr2/gzvfdQN8rTfBsvVKmIVY/X7EM+/hJKEIbbHs9oA4tQ==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [darwin]
+
+  '@esbuild/darwin-x64@0.27.4':
+    resolution: {integrity: sha512-sR+OiKLwd15nmCdqpXMnuJ9W2kpy0KigzqScqHI3Hqwr7IXxBp3Yva+yJwoqh7rE8V77tdoheRYataNKL4QrPw==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [darwin]
+
+  '@esbuild/freebsd-arm64@0.27.4':
+    resolution: {integrity: sha512-jnfpKe+p79tCnm4GVav68A7tUFeKQwQyLgESwEAUzyxk/TJr4QdGog9sqWNcUbr/bZt/O/HXouspuQDd9JxFSw==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [freebsd]
+
+  '@esbuild/freebsd-x64@0.27.4':
+    resolution: {integrity: sha512-2kb4ceA/CpfUrIcTUl1wrP/9ad9Atrp5J94Lq69w7UwOMolPIGrfLSvAKJp0RTvkPPyn6CIWrNy13kyLikZRZQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [freebsd]
+
+  '@esbuild/linux-arm64@0.27.4':
+    resolution: {integrity: sha512-7nQOttdzVGth1iz57kxg9uCz57dxQLHWxopL6mYuYthohPKEK0vU0C3O21CcBK6KDlkYVcnDXY099HcCDXd9dA==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [linux]
+
+  '@esbuild/linux-arm@0.27.4':
+    resolution: {integrity: sha512-aBYgcIxX/wd5n2ys0yESGeYMGF+pv6g0DhZr3G1ZG4jMfruU9Tl1i2Z+Wnj9/KjGz1lTLCcorqE2viePZqj4Eg==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [linux]
+
+  '@esbuild/linux-ia32@0.27.4':
+    resolution: {integrity: sha512-oPtixtAIzgvzYcKBQM/qZ3R+9TEUd1aNJQu0HhGyqtx6oS7qTpvjheIWBbes4+qu1bNlo2V4cbkISr8q6gRBFA==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [linux]
+
+  '@esbuild/linux-loong64@0.27.4':
+    resolution: {integrity: sha512-8mL/vh8qeCoRcFH2nM8wm5uJP+ZcVYGGayMavi8GmRJjuI3g1v6Z7Ni0JJKAJW+m0EtUuARb6Lmp4hMjzCBWzA==}
+    engines: {node: '>=18'}
+    cpu: [loong64]
+    os: [linux]
+
+  '@esbuild/linux-mips64el@0.27.4':
+    resolution: {integrity: sha512-1RdrWFFiiLIW7LQq9Q2NES+HiD4NyT8Itj9AUeCl0IVCA459WnPhREKgwrpaIfTOe+/2rdntisegiPWn/r/aAw==}
+    engines: {node: '>=18'}
+    cpu: [mips64el]
+    os: [linux]
+
+  '@esbuild/linux-ppc64@0.27.4':
+    resolution: {integrity: sha512-tLCwNG47l3sd9lpfyx9LAGEGItCUeRCWeAx6x2Jmbav65nAwoPXfewtAdtbtit/pJFLUWOhpv0FpS6GQAmPrHA==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [linux]
+
+  '@esbuild/linux-riscv64@0.27.4':
+    resolution: {integrity: sha512-BnASypppbUWyqjd1KIpU4AUBiIhVr6YlHx/cnPgqEkNoVOhHg+YiSVxM1RLfiy4t9cAulbRGTNCKOcqHrEQLIw==}
+    engines: {node: '>=18'}
+    cpu: [riscv64]
+    os: [linux]
+
+  '@esbuild/linux-s390x@0.27.4':
+    resolution: {integrity: sha512-+eUqgb/Z7vxVLezG8bVB9SfBie89gMueS+I0xYh2tJdw3vqA/0ImZJ2ROeWwVJN59ihBeZ7Tu92dF/5dy5FttA==}
+    engines: {node: '>=18'}
+    cpu: [s390x]
+    os: [linux]
+
+  '@esbuild/linux-x64@0.27.4':
+    resolution: {integrity: sha512-S5qOXrKV8BQEzJPVxAwnryi2+Iq5pB40gTEIT69BQONqR7JH1EPIcQ/Uiv9mCnn05jff9umq/5nqzxlqTOg9NA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [linux]
+
+  '@esbuild/netbsd-arm64@0.27.4':
+    resolution: {integrity: sha512-xHT8X4sb0GS8qTqiwzHqpY00C95DPAq7nAwX35Ie/s+LO9830hrMd3oX0ZMKLvy7vsonee73x0lmcdOVXFzd6Q==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [netbsd]
+
+  '@esbuild/netbsd-x64@0.27.4':
+    resolution: {integrity: sha512-RugOvOdXfdyi5Tyv40kgQnI0byv66BFgAqjdgtAKqHoZTbTF2QqfQrFwa7cHEORJf6X2ht+l9ABLMP0dnKYsgg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [netbsd]
+
+  '@esbuild/openbsd-arm64@0.27.4':
+    resolution: {integrity: sha512-2MyL3IAaTX+1/qP0O1SwskwcwCoOI4kV2IBX1xYnDDqthmq5ArrW94qSIKCAuRraMgPOmG0RDTA74mzYNQA9ow==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openbsd]
+
+  '@esbuild/openbsd-x64@0.27.4':
+    resolution: {integrity: sha512-u8fg/jQ5aQDfsnIV6+KwLOf1CmJnfu1ShpwqdwC0uA7ZPwFws55Ngc12vBdeUdnuWoQYx/SOQLGDcdlfXhYmXQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [openbsd]
+
+  '@esbuild/openharmony-arm64@0.27.4':
+    resolution: {integrity: sha512-JkTZrl6VbyO8lDQO3yv26nNr2RM2yZzNrNHEsj9bm6dOwwu9OYN28CjzZkH57bh4w0I2F7IodpQvUAEd1mbWXg==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openharmony]
+
+  '@esbuild/sunos-x64@0.27.4':
+    resolution: {integrity: sha512-/gOzgaewZJfeJTlsWhvUEmUG4tWEY2Spp5M20INYRg2ZKl9QPO3QEEgPeRtLjEWSW8FilRNacPOg8R1uaYkA6g==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [sunos]
+
+  '@esbuild/win32-arm64@0.27.4':
+    resolution: {integrity: sha512-Z9SExBg2y32smoDQdf1HRwHRt6vAHLXcxD2uGgO/v2jK7Y718Ix4ndsbNMU/+1Qiem9OiOdaqitioZwxivhXYg==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [win32]
+
+  '@esbuild/win32-ia32@0.27.4':
+    resolution: {integrity: sha512-DAyGLS0Jz5G5iixEbMHi5KdiApqHBWMGzTtMiJ72ZOLhbu/bzxgAe8Ue8CTS3n3HbIUHQz/L51yMdGMeoxXNJw==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [win32]
+
+  '@esbuild/win32-x64@0.27.4':
+    resolution: {integrity: sha512-+knoa0BDoeXgkNvvV1vvbZX4+hizelrkwmGJBdT17t8FNPwG2lKemmuMZlmaNQ3ws3DKKCxpb4zRZEIp3UxFCg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [win32]
+
+  '@types/node@22.19.15':
+    resolution: {integrity: sha512-F0R/h2+dsy5wJAUe3tAU6oqa2qbWY5TpNfL/RGmo1y38hiyO1w3x2jPtt76wmuaJI4DQnOBu21cNXQ2STIUUWg==}
+
+  cross-env@7.0.3:
+    resolution: {integrity: sha512-+/HKd6EgcQCJGh2PSjZuUitQBQynKor4wrFbRg4DtAgS1aWO+gU52xpH7M9ScGgXSYmAVS9bIJ8EzuaGw0oNAw==}
+    engines: {node: '>=10.14', npm: '>=6', yarn: '>=1'}
+    hasBin: true
+
+  cross-spawn@7.0.6:
+    resolution: {integrity: sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==}
+    engines: {node: '>= 8'}
+
+  esbuild@0.27.4:
+    resolution: {integrity: sha512-Rq4vbHnYkK5fws5NF7MYTU68FPRE1ajX7heQ/8QXXWqNgqqJ/GkmmyxIzUnf2Sr/bakf8l54716CcMGHYhMrrQ==}
+    engines: {node: '>=18'}
+    hasBin: true
+
+  fsevents@2.3.3:
+    resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
+    engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
+    os: [darwin]
+
+  get-tsconfig@4.13.6:
+    resolution: {integrity: sha512-shZT/QMiSHc/YBLxxOkMtgSid5HFoauqCE3/exfsEcwg1WkeqjG+V40yBbBrsD+jW2HDXcs28xOfcbm2jI8Ddw==}
+
+  isexe@2.0.0:
+    resolution: {integrity: sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==}
+
+  path-key@3.1.1:
+    resolution: {integrity: sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==}
+    engines: {node: '>=8'}
+
+  resolve-pkg-maps@1.0.0:
+    resolution: {integrity: sha512-seS2Tj26TBVOC2NIc2rOe2y2ZO7efxITtLZcGSOnHHNOQ7CkiUBfw0Iw2ck6xkIhPwLhKNLS8BO+hEpngQlqzw==}
+
+  shebang-command@2.0.0:
+    resolution: {integrity: sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==}
+    engines: {node: '>=8'}
+
+  shebang-regex@3.0.0:
+    resolution: {integrity: sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==}
+    engines: {node: '>=8'}
+
+  tsx@4.21.0:
+    resolution: {integrity: sha512-5C1sg4USs1lfG0GFb2RLXsdpXqBSEhAaA/0kPL01wxzpMqLILNxIxIOKiILz+cdg/pLnOUxFYOR5yhHU666wbw==}
+    engines: {node: '>=18.0.0'}
+    hasBin: true
+
+  typescript@5.9.3:
+    resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
+    engines: {node: '>=14.17'}
+    hasBin: true
+
+  undici-types@6.21.0:
+    resolution: {integrity: sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==}
+
+  which@2.0.2:
+    resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
+    engines: {node: '>= 8'}
+    hasBin: true
+
+snapshots:
+
+  '@esbuild/aix-ppc64@0.27.4':
+    optional: true
+
+  '@esbuild/android-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/android-arm@0.27.4':
+    optional: true
+
+  '@esbuild/android-x64@0.27.4':
+    optional: true
+
+  '@esbuild/darwin-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/darwin-x64@0.27.4':
+    optional: true
+
+  '@esbuild/freebsd-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/freebsd-x64@0.27.4':
+    optional: true
+
+  '@esbuild/linux-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/linux-arm@0.27.4':
+    optional: true
+
+  '@esbuild/linux-ia32@0.27.4':
+    optional: true
+
+  '@esbuild/linux-loong64@0.27.4':
+    optional: true
+
+  '@esbuild/linux-mips64el@0.27.4':
+    optional: true
+
+  '@esbuild/linux-ppc64@0.27.4':
+    optional: true
+
+  '@esbuild/linux-riscv64@0.27.4':
+    optional: true
+
+  '@esbuild/linux-s390x@0.27.4':
+    optional: true
+
+  '@esbuild/linux-x64@0.27.4':
+    optional: true
+
+  '@esbuild/netbsd-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/netbsd-x64@0.27.4':
+    optional: true
+
+  '@esbuild/openbsd-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/openbsd-x64@0.27.4':
+    optional: true
+
+  '@esbuild/openharmony-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/sunos-x64@0.27.4':
+    optional: true
+
+  '@esbuild/win32-arm64@0.27.4':
+    optional: true
+
+  '@esbuild/win32-ia32@0.27.4':
+    optional: true
+
+  '@esbuild/win32-x64@0.27.4':
+    optional: true
+
+  '@types/node@22.19.15':
+    dependencies:
+      undici-types: 6.21.0
+
+  cross-env@7.0.3:
+    dependencies:
+      cross-spawn: 7.0.6
+
+  cross-spawn@7.0.6:
+    dependencies:
+      path-key: 3.1.1
+      shebang-command: 2.0.0
+      which: 2.0.2
+
+  esbuild@0.27.4:
+    optionalDependencies:
+      '@esbuild/aix-ppc64': 0.27.4
+      '@esbuild/android-arm': 0.27.4
+      '@esbuild/android-arm64': 0.27.4
+      '@esbuild/android-x64': 0.27.4
+      '@esbuild/darwin-arm64': 0.27.4
+      '@esbuild/darwin-x64': 0.27.4
+      '@esbuild/freebsd-arm64': 0.27.4
+      '@esbuild/freebsd-x64': 0.27.4
+      '@esbuild/linux-arm': 0.27.4
+      '@esbuild/linux-arm64': 0.27.4
+      '@esbuild/linux-ia32': 0.27.4
+      '@esbuild/linux-loong64': 0.27.4
+      '@esbuild/linux-mips64el': 0.27.4
+      '@esbuild/linux-ppc64': 0.27.4
+      '@esbuild/linux-riscv64': 0.27.4
+      '@esbuild/linux-s390x': 0.27.4
+      '@esbuild/linux-x64': 0.27.4
+      '@esbuild/netbsd-arm64': 0.27.4
+      '@esbuild/netbsd-x64': 0.27.4
+      '@esbuild/openbsd-arm64': 0.27.4
+      '@esbuild/openbsd-x64': 0.27.4
+      '@esbuild/openharmony-arm64': 0.27.4
+      '@esbuild/sunos-x64': 0.27.4
+      '@esbuild/win32-arm64': 0.27.4
+      '@esbuild/win32-ia32': 0.27.4
+      '@esbuild/win32-x64': 0.27.4
+
+  fsevents@2.3.3:
+    optional: true
+
+  get-tsconfig@4.13.6:
+    dependencies:
+      resolve-pkg-maps: 1.0.0
+
+  isexe@2.0.0: {}
+
+  path-key@3.1.1: {}
+
+  resolve-pkg-maps@1.0.0: {}
+
+  shebang-command@2.0.0:
+    dependencies:
+      shebang-regex: 3.0.0
+
+  shebang-regex@3.0.0: {}
+
+  tsx@4.21.0:
+    dependencies:
+      esbuild: 0.27.4
+      get-tsconfig: 4.13.6
+    optionalDependencies:
+      fsevents: 2.3.3
+
+  typescript@5.9.3: {}
+
+  undici-types@6.21.0: {}
+
+  which@2.0.2:
+    dependencies:
+      isexe: 2.0.0
@@ -25,7 +25,17 @@ import { computeTasksSummary } from "../runtime/task-summary";
 * In readonly mode it uses a no-op client.
 * In live mode it uses a client that is currently guarded and not enabled yet.
 */
+/** Active session states that may change between polling cycles. */
+const ACTIVE_SESSION_STATES = new Set(["running", "blocked", "waiting_approval"]);
+
 export class OpenClawReadonlyAdapter {
+  /** Cached status snapshots from the previous polling cycle, keyed by sessionKey. */
+  private cachedStatuses = new Map<string, SessionStatusSnapshot>();
+  /** Session keys seen in the previous snapshot – used to detect new sessions. */
+  private previousSessionKeys = new Set<string>();
+  /** Session keys that were in an active state during the previous snapshot. */
+  private previousActiveKeys = new Set<string>();
+
  constructor(private readonly client: ToolClient) {}

  async listSessions(): Promise<SessionSummary[]> {
@@ -56,7 +66,42 @@ export class OpenClawReadonlyAdapter {

  async snapshot(): Promise<ReadModelSnapshot> {
    const sessions = await this.listSessions();
-    const statuses = await this.listSessionStatuses(sessions.map((s) => s.sessionKey));
+    const currentKeys = new Set(sessions.map((s) => s.sessionKey));
+
+    // Determine which sessions need a fresh status query:
+    //  1. Sessions not seen in the previous snapshot (new)
+    //  2. Sessions in an active state (running / blocked / waiting_approval)
+    //  3. Sessions that were active last cycle but no longer are (final refresh)
+    const keysToQuery = sessions
+      .filter(
+        (s) =>
+          !this.previousSessionKeys.has(s.sessionKey) ||
+          ACTIVE_SESSION_STATES.has(s.state) ||
+          this.previousActiveKeys.has(s.sessionKey),
+      )
+      .map((s) => s.sessionKey);
+
+    // Fetch only the subset that needs refreshing
+    if (keysToQuery.length > 0) {
+      const freshStatuses = await this.listSessionStatuses(keysToQuery);
+      for (const status of freshStatuses) {
+        this.cachedStatuses.set(status.sessionKey, status);
+      }
+    }
+
+    // Prune sessions that no longer exist
+    for (const key of this.cachedStatuses.keys()) {
+      if (!currentKeys.has(key)) {
+        this.cachedStatuses.delete(key);
+      }
+    }
+
+    this.previousSessionKeys = currentKeys;
+    this.previousActiveKeys = new Set(
+      sessions.filter((s) => ACTIVE_SESSION_STATES.has(s.state)).map((s) => s.sessionKey),
+    );
+
+    const statuses = Array.from(this.cachedStatuses.values());
    const cronJobs = await this.listCronJobs();
    const approvals = await this.listApprovals();
    const [projects, tasks] = await Promise.all([loadProjectStore(), loadTaskStore()]);
@@ -16,7 +16,7 @@ export const TASK_HEARTBEAT_MAX_TASKS_PER_RUN = parsePositiveInt(
 );

 export const POLLING_INTERVALS_MS = {
-  sessionsList: 5000,
+  sessionsList: 10000,
  sessionStatus: 2000,
  cron: 10000,
  approvals: 2000,
@@ -3959,7 +3959,7 @@ async function loadCachedSessionPreview(snapshot: ReadModelSnapshot, toolClient:
    filters: {},
    page: 1,
    pageSize: 12,
-    historyLimit: 10,
+    historyLimit: 5,
  });
  renderSessionPreviewCache = {
    snapshotAt: snapshot.generatedAt,
@@ -3970,22 +3970,19 @@ async function loadCachedSessionPreview(snapshot: ReadModelSnapshot, toolClient:
 }

 function buildUsageCostCacheKey(snapshot: ReadModelSnapshot, mode: UsageCostMode): string {
-  const sessionStamp = snapshot.sessions
-    .map((item) => [item.sessionKey, item.agentId ?? "", item.state, item.lastMessageAt ?? "", item.label ?? ""].join(":"))
-    .join("|");
-  const statusStamp = snapshot.statuses
-    .map((item) =>
-      [
-        item.sessionKey,
-        item.model ?? "",
-        String(item.tokensIn ?? 0),
-        String(item.tokensOut ?? 0),
-        String(item.cost ?? 0),
-        item.updatedAt ?? "",
-      ].join(":"),
-    )
-    .join("|");
-  return `${mode}|${sessionStamp}|${statusStamp}`;
+  // Content-based fingerprint – changes only when session/status data
+  // actually changes, unlike generatedAt which changes every poll cycle.
+  // Session state (running→idle etc.) affects the output (contextWindows
+  // rows use session.state), so we include it alongside status timestamps.
+  const sessionFingerprint = snapshot.sessions
+    .map((s) => `${s.sessionKey}:${s.state}`)
+    .sort()
+    .join(";");
+  const statusFingerprint = snapshot.statuses
+    .map((s) => `${s.sessionKey}:${s.updatedAt}`)
+    .sort()
+    .join(";");
+  return `${mode}|${sessionFingerprint}|${statusFingerprint}`;
 }

 async function loadCachedUsageCost(
@@ -8084,7 +8081,7 @@ function parseSessionQuery(searchParams: URLSearchParams, strict: boolean): Sess
  return {
    filters,
    page: readPositiveIntQuery(searchParams.get("page"), "page", 1, strict),
-    pageSize: readPositiveIntQuery(searchParams.get("pageSize"), "pageSize", 20, strict, 100),
+    pageSize: readPositiveIntQuery(searchParams.get("pageSize"), "pageSize", 12, strict, 100),
    historyLimit: readPositiveIntQuery(searchParams.get("historyLimit"), "historyLimit", 8, strict, 200),
  };
 }