Files
deepseek-harness/packages/sandbox/sandbox-policy/package.json
Yichen Jiang 7606a99813 feat(sandbox): deny confined executions read access to the credential document
The credential store is 0600 under a 0700 directory, which stops other OS
users but not the model: tool processes run as the same user, so under
the shipped danger-full-access default they read it like any other file.

SandboxExecutionPolicy grows readDenyPaths, and sandbox-policy defaults
it to $DSH_HOME/.env — the exact file rather than the harness home, so
the model keeps its documented access to its own session log. Seatbelt
appends a trailing deny (last matching rule wins) and bwrap maps
/dev/null over each path after any workspace bind; Landlock grants are a
pure allow-list that cannot subtract from its own / read grant, so
confine() reports partial enforcement there instead of claiming a
boundary the process does not have.

A real-kernel Seatbelt e2e proves the shape: the same read succeeds
unconfined and fails under the denial, while a sibling file in the same
directory stays readable. Both READMEs state the residual boundary
plainly — no confining mode means no boundary — and record the OS
keychain provider as the real answer.
2026-07-30 16:02:13 +08:00

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{
"name": "@deepseek-ai/dsh-sandbox-policy",
"description": "Per-call sandbox policy resolver (ctx.sandboxPolicy): deployment fallbacks plus each session's mode and workspace root, shared by every enforcing capability family",
"version": "0.0.1",
"private": true,
"type": "module",
"main": "lib/index.js",
"types": "lib/types/index.d.ts",
"exports": {
".": {
"types": "./lib/types/index.d.ts",
"default": "./lib/index.js"
},
"./invariant": {
"types": "./lib/types/invariant.d.ts",
"default": "./lib/invariant.js"
},
"./src/*": "./src/*",
"./package.json": "./package.json"
},
"files": [
"lib/index.js",
"lib/invariant.js",
"lib/types/**/*.d.ts",
"lib/types/**/*.d.ts.map",
"src"
],
"license": "BSD-3-Clause",
"peerDependencies": {
"@deepseek-ai/dsh-invariants": "^0.0.1",
"@deepseek-ai/dsh-paths": "^0.0.1",
"@deepseek-ai/dsh-sandbox": "^0.0.1",
"@deepseek-ai/dsh-session": "^0.0.1",
"cordis": "^4.0.0-rc.7"
},
"dependencies": {
"schemastery": "^3.18.0"
},
"devDependencies": {
"@deepseek-ai/dsh-invariants": "workspace:^",
"@deepseek-ai/dsh-paths": "workspace:^",
"@deepseek-ai/dsh-sandbox": "workspace:^",
"@deepseek-ai/dsh-session": "workspace:^",
"cordis": "^4.0.0-rc.7"
}
}