registry / oh-my-opencode / 5.1.58
oh-my-opencode@5.1.58
The Best AI Agent Harness - Batteries-Included OpenCode Plugin with Multi-Model Orchestration, Parallel Background Agents, and Crafted LSP/AST Tools
AI Security Review
scanned 3d ago · by lpm-firewall-aiThe install hook performs a local version probe, and the flagged provider configuration sends its own named credential to that provider’s endpoint when configured. The reviewed environment cleaner filters common secrets from MCP subprocesses; the scanner’s execution and credential indicators did not establish an attack chain.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Install runs the postinstall version check; provider requests occur when the configured provider is used.
Impact
No unauthorized credential transfer, unrelated execution, or unconsented agent-control change was established in the reviewed paths.
Mechanism
The install check invokes the local OpenCode version command. OpenGateway configuration is conditional on its own credential or provider auth, and MCP subprocess environments filter common secrets.
AI rationale
The install hook performs a local version probe, and the flagged provider configuration sends its own named credential to that provider’s endpoint when configured. The reviewed environment cleaner filters common secrets from MCP subprocesses; the scanner’s execution and credential indicators did not establish an attack chain.
Network endpoints2
apis.opengateway.aius.i.posthog.com
Decision evidence
public snapshotAI called this Clean at 88.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The install hook runs a local `opencode --version` check and does not send data over the network.
- The OpenGateway provider uses the explicitly named `OPENGATEWAY_API_KEY` and its documented `apis.opengateway.ai` endpoint.
- The MCP environment cleaner excludes common provider keys, tokens, passwords, and credential variables.
Evidence against
- The package defines `prepare` and `postinstall` lifecycle scripts.
- The CLI bundles PostHog telemetry code.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetryUrlStrings
GitDependency
Source & flagged code
22 flaggedpackage.jsonView file
1Install-time code directly mutates a foreign AI-agent control surface:
L63: "docs/reference/web-terminal-visual-qa.md",
L64: ".opencode/command",
L65: ".opencode/skills",
L66: ".agents/command",
L67: ".agents/skills",
L68: "packages/lsp-tools-mcp/package.json",
...
L98: "packages/prompts-core/prompts/ultrawork/codex.md",
L99: "packages/omo-codex/plugin/.codex-plugin",
L100: "!packages/omo-codex/plugin/node_modules",
...
L153: "test:fast": "bun run script/test-fast.ts",
L154: "test:senpi": "bun run build:senpi-plugin && bun check --no-script --all -p packages/omo-senpi/tsconfig.json && bun test --timeout 20000 packages/omo-senpi && bun test ./.agents/sk...
L155: "test:windows-codex": "bun run test:codex",
Write operation from dist/tui.js:
L2183: // packages/utils/src/xdg-data-dir.ts
L2184:
Critical
Ai Agent Control Hijack
Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.
package.jsonView on unpkg · L1•scripts.postinstall = node postinstall.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node postinstall.mjs
Findings
3 Critical13 High9 Medium7 Low
CriticalDownload Executepackages/omo-codex/plugin/components/lsp/dist/cli.js
CriticalEncrypted Payload Temp Executiondist/cli-node/index.js
CriticalAi Agent Control Hijackpackage.json
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processbin/oh-my-opencode.js
HighShelldist/cli-node/index.js
HighEvaldist/skills/ulw-research/scripts/layout-probe.test.ts
HighSame File Env Network Executiondist/cli-node/index.js
HighCredential Redirect Persistencedist/index.js
HighCommand Output Exfiltrationdist/cli-node/index.js
HighSandbox Evasion Gated Capabilitydist/skills/browser/runtime/omowright/index.js
Affected versions and remediation
This report applies to oh-my-opencode@5.1.58.
See all versions of oh-my-opencode for other recorded verdicts.
- Review the evidence and your use of oh-my-opencode@5.1.58 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
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