* Prompt for shell network permissions Route network-risk shell calls through the existing permission prompt instead of hard-denying them at sandbox preflight. Approved network prompts apply the current turn/session request-permissions overlay so the effective sandbox policy is widened only after user approval. Move network command detection into the shell AST analyzer for package installers, gh/git network subcommands, and python http.server so quoted process patterns such as pkill -f "python3 -m http.server 8000" are not misclassified as network activity. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox -run 'TestAnalyzeCommand|TestClassifyDoesNotFlagQuotedHttpServerPattern|TestEvaluateExemptsNetworkToolsFromDenyByDefault|TestEngineClassifiesNetworkAndDestructiveShellCommands|TestGrantRequestPermissionsNetworkOverlaysPolicyForTurn' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent -run 'TestRunPersistentCommandPrefixStillPromptsForNetwork|TestRunApprovedNetworkBashPromptAppliesTurnNetworkGrant' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/tools -run 'TestBash|TestRegistryRunsBashThroughSandboxEngine' Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Auto-allow native-sandboxed shell commands Remove the old hidden bash auto-allow environment/config path. Ordinary shell commands now use the active native sandbox as the permission boundary by default, while network, destructive, and workspace policy checks still run first. Policy-only and disabled sandbox backends continue to require approval for shell commands, so unsandboxed execution is not silently allowed. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox -run 'TestSandboxedBash|TestShellSandboxActive|TestEvaluateExemptsNetworkToolsFromDenyByDefault|TestGrantRequestPermissionsNetworkOverlaysPolicyForTurn|TestAnalyzeCommand|TestClassifyDoesNotFlagQuotedHttpServerPattern' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/tools -run 'TestBashAuto|TestBashStillPromptsWithoutActiveSandbox|TestRegistryRunsBashThroughSandboxEngine' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/cli -run 'TestApplyConfiguredSandboxPolicy|TestApplyConfiguredAutonomyCeiling' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent -run 'TestRunPersistentCommandPrefixStillPromptsForNetwork|TestRunApprovedNetworkBashPromptAppliesTurnNetworkGrant' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/daemon -run 'TestScrubWorkerEnvRemovesReentrancyMarkers' Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Prompt for destructive shell approval Remove the separate DenyDestructiveShell policy layer from active sandbox decisions. Destructive shell classification now produces an approval prompt in ask/auto flows instead of a sandbox hard-deny, while no-approval paths remain blocked. Drop the removed destructive-shell policy field from sandbox policy output, backend capabilities, snapshots, and Windows golden data. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent -run 'TestRunPromptsForDestructiveShellInsteadOfSandboxDeny|TestRunPersistentCommandPrefixStillPromptsForNetwork|TestRunApprovedNetworkBashPromptAppliesTurnNetworkGrant' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox -run 'TestEngineClassifiesNetworkAndDestructiveShellCommands|TestBackendCapabilitiesReflectDisabledPolicy' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/cli -run 'TestRunSandboxPolicy|TestEffectiveSandboxPolicy' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/zerocommands -run 'TestSandboxPolicySnapshotFromPolicyFillsEffectiveMode' Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Remove web-tool network policy switch Remove the old EnforceToolNetwork policy option and the NetworkHostAllowed per-tool gate so sandbox network policy only controls sandboxed shell egress. Keep web_search and web_fetch on their own tool permission and URL safety paths, with tests proving deny/scoped shell network policy no longer blocks in-process web tools. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox -run 'TestEvaluateExemptsNetworkToolsFromShellNetworkPolicy|TestEngineAllowsNetworkSideEffectWhenShellPolicyBlocksNetwork|TestGrantRequestPermissionsNetworkOverlaysPolicyForTurn|TestScopedNetworkGateInEvaluate' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/tools -run 'TestWebSearchRunWithSandbox|TestWebFetchRunWithSandbox|TestRegistryRoutesWebFetchThroughSandboxPath' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent -run 'TestRunPersistentCommandPrefixStillPromptsForNetwork|TestRunApprovedNetworkBashPromptAppliesTurnNetworkGrant' Tested: GOCACHE=/tmp/zero-go-cache go test ./... Tested: git diff --check * Prompt for outside-workspace file access Convert recoverable outside-workspace file path violations into permission prompts instead of hard-denying in ask/auto modes. Approved prompts now grant the requested filesystem scope through the existing request_permissions overlay for the current turn or session, so the follow-up sandbox evaluation and scoped file tools use the same policy path. Keep unsafe mode, apply_patch escapes, symlink traversal, and non-recoverable path cases hard-denied. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox -run 'TestEngineAutoAllowsWorkspaceFileMutationTools|TestEngineDeniesOutOfWorkspacePaths|TestGrantRequestPermissionsReadDoesNotGrantWrite|TestGrantRequestPermissionsSessionPersists' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent -run 'TestRunPromptsAndAllowsOutsideWorkspaceWrite|TestRunSessionAllowsLaterOutsideWorkspaceWrite|TestRunAppliesSandboxEvenInUnsafeMode' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/tools -run 'TestRegistryAppliesSandboxBeforeToolExecution|TestRegistrySandboxGatesPathAliasKeys|TestRegistryAllowsPromptToolWithPersistentSandboxGrant' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/cli -run 'TestRunSandboxCheckJSONDeniesOutOfWorkspaceWrite' Tested: GOCACHE=/tmp/zero-go-cache go test ./... Tested: git diff --check * Fix Windows network prompt test fixture Use a Windows curl.cmd shim and cmd.exe PATH syntax for TestRunApprovedNetworkBashPromptAppliesTurnNetworkGrant while keeping the POSIX fake curl fixture for Linux and macOS. This keeps the test focused on network prompt approval and turn network grants instead of relying on a POSIX shell script being executable on Windows. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent -run 'TestRunApprovedNetworkBashPromptAppliesTurnNetworkGrant|TestRunPersistentCommandPrefixStillPromptsForNetwork' Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox -run 'TestClassifyASTCatchesNetworkProgramsRegexMisses|TestClassifyFlagsPipedInstallerVariants' Tested: GOCACHE=/tmp/zero-go-cache go test ./... Tested: git diff --check * Remove sandbox autonomy ceilings Sandbox permission decisions now match grants by tool and scope only, without MaxAutonomy or request autonomy checks. Persistent/session grants, permission approvals, workspace-write auto-allow, and native-sandbox shell auto-allow no longer route through an autonomy ceiling. Remove the sandbox.maxAutonomy config and CLI surfaces, including grant --auto, policy output, sandbox check autonomy input, and sandbox grant snapshots. MCP permission autonomy is intentionally unchanged because it is a separate MCP permission model. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox ./internal/agent ./internal/tools ./internal/zerocommands ./internal/config ./internal/cli ./internal/tui Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Fail closed without native sandbox Remove AllowPolicyOnlyRunner from sandbox policy and snapshots. A restricted/managed command plan now errors when native sandbox support is unavailable instead of running through a policy-only direct runner. Policy-only backend data remains as diagnostics for capability/reporting paths, but it no longer authorizes command execution when a platform sandbox is required. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox ./internal/zerocommands ./internal/cli ./internal/tui Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/agent ./internal/tools Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Remove scoped shell network policy Drop the domain-scoped shell network mode and the local scoped-egress proxy path from the active sandbox model. Shell network policy now serializes and evaluates only deny or allow. Request-permissions network grants widen to allow without domain lists, and platform profiles consume the binary mode directly. The Linux helper no longer accepts proxy-route flags, Windows network hashes only the binary mode, and web tool tests assert they remain separate from shell network policy. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox ./internal/tools ./internal/notify Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Align permission grant ordering and prompt text Move persistent and session grant matching ahead of recoverable sandbox prompts while keeping explicit denies and non-recoverable path violations fail-closed. Clean TUI permission transcript/card text so normal prompts show action, reason, scope, and readable block details instead of raw permission/risk/violation key-value metadata. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox ./internal/tui ./internal/agent ./internal/tools Tested: GOCACHE=/tmp/zero-go-cache go test ./... * Remove policy-only sandbox terminology Replace the unavailable native-backend diagnostic path with explicit unavailable support/backend states, and stop presenting missing native isolation as a policy-only fallback. Rename structured sandbox denial metadata from violation to block across permission events, stream-json, snapshots, TUI rendering, and sandbox-check output so user-facing flow matches blocked action language. Update README, work split docs, smoke test selectors, and Windows sandbox policy golden output for the new backend/support names and block payloads. Tested: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox ./internal/agent ./internal/tools ./internal/tui ./internal/cli ./internal/doctor ./internal/zerocommands ./internal/streamjson Tested: GOCACHE=/tmp/zero-go-cache go test ./... Tested: scripts/sandbox-smoke.sh Tested: git diff --check * Fix sandbox review follow-ups Fail closed for unknown network modes, keep network prompts ahead of bash allow grants, preserve v1 grant-file reads, and classify unparseable commands with obvious network programs as network-risk. Bump stream-json schema to v2 and document the block metadata field after the violation-to-block rename. Tests: GOCACHE=/tmp/zero-go-cache go test ./internal/sandbox ./internal/streamjson ./internal/specialist ./internal/cli -run 'TestExec.*Stream|TestStreamJSON|TestExecProtocol|TestExecReadsStreamJSONImages|TestExecAcceptsImageOnlyStreamJSONMessage|TestExecInputFormatStreamJSON' Tests: GOCACHE=/tmp/zero-go-cache go test ./... Tests: scripts/sandbox-smoke.sh Tests: git diff --check
3.7 KiB
Zero Stream-JSON Protocol
Zero stream-json is a line-delimited protocol for headless clients such as editor extensions and automation wrappers.
Every line is one JSON object. Empty input lines are ignored. Output events are redacted before they are written to stdout.
Version
Current schema version: 2
Every input and output event must include:
{ "schemaVersion": 2, "type": "..." }
Output events also include runId.
Input Events
zero exec --input-format stream-json accepts these JSONL events from stdin or
--file.
{ "schemaVersion": 2, "type": "message", "role": "user", "content": "Inspect this repo." }
{ "schemaVersion": 2, "type": "prompt", "content": "Return only blockers." }
Zero combines accepted input event content in order, separated by blank lines. Unknown fields are rejected so protocol clients catch drift early.
Schema version 2 renamed sandbox permission metadata from violation to
block. Clients should read the optional block object on permission and tool
events when present.
Output Events
zero exec --output-format stream-json emits schema-versioned JSONL events.
{ "schemaVersion": 2, "type": "run_start", "runId": "run_20260603_abc123", "sessionId": "zero_20260603100000_abc123", "cwd": "/repo", "provider": "openai", "model": "gpt-4.1", "apiModel": "gpt-4.1" }
{ "schemaVersion": 2, "type": "text", "runId": "run_20260603_abc123", "delta": "..." }
{ "schemaVersion": 2, "type": "tool_call", "runId": "run_20260603_abc123", "id": "call_1", "name": "read_file", "args": { "path": "README.md" }, "sideEffect": "read" }
{ "schemaVersion": 2, "type": "permission_request", "runId": "run_20260603_abc123", "id": "call_2", "name": "write_file", "action": "prompt", "permission": "prompt", "permissionMode": "ask", "sideEffect": "write", "reason": "Creates or overwrites files." }
{ "schemaVersion": 2, "type": "permission_decision", "runId": "run_20260603_abc123", "id": "call_2", "name": "write_file", "action": "allow", "permission": "prompt", "permissionGranted": true, "decisionReason": "approved in TUI" }
{ "schemaVersion": 2, "type": "tool_result", "runId": "run_20260603_abc123", "id": "call_1", "status": "ok", "output": "...", "truncated": false }
{ "schemaVersion": 2, "type": "usage", "runId": "run_20260603_abc123", "promptTokens": 12, "completionTokens": 8, "totalTokens": 20 }
{ "schemaVersion": 2, "type": "final", "runId": "run_20260603_abc123", "text": "..." }
{ "schemaVersion": 2, "type": "run_end", "runId": "run_20260603_abc123", "status": "success", "exitCode": 0 }
Permission events may include structured sandbox metadata:
{ "schemaVersion": 2, "type": "permission_request", "runId": "run_20260603_abc123", "id": "call_3", "name": "bash", "action": "prompt", "permission": "prompt", "permissionMode": "ask", "sideEffect": "shell", "reason": "network access requires approval", "risk": { "level": "critical", "categories": ["network"] }, "block": { "code": "network", "toolName": "bash", "action": "prompt", "risk": { "level": "critical", "categories": ["network"] }, "reason": "network access requires approval", "recoverable": true } }
Errors are part of the protocol and are followed by run_end.
Headless exec has no interactive permission responder. If a prompt-gated tool
is not pre-approved, Zero may emit permission_request followed by a denied
tool_result; interactive surfaces emit permission_decision when the user
allows, denies, or always-allows the request.
{ "schemaVersion": 2, "type": "error", "runId": "run_20260603_abc123", "code": "provider_error", "message": "...", "recoverable": false }
{ "schemaVersion": 2, "type": "run_end", "runId": "run_20260603_abc123", "status": "error", "exitCode": 3 }