registry / oh-my-opencode / 5.1.48
oh-my-opencode@5.1.48
⚠ Under reviewThe Best AI Agent Harness - Batteries-Included OpenCode Plugin with Multi-Model Orchestration, Parallel Background Agents, and Crafted LSP/AST Tools
AI Security Review
scanned 10d ago · by lpm-firewall-aiThe scanner’s dynamic-evaluation lead resolves to a test helper, and the inspected postinstall behavior is plugin cache invalidation plus platform checks. The selected optional platform binary is an executable dependency whose source is unavailable here, so the review remains unresolved without evidence that it is malicious.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source
Trigger
Running the package CLI on a supported platform.
Impact
The delegated executable’s behavior remains unassessed, so the package cannot be cleared from this source snapshot alone.
Mechanism
The wrapper selects an installed platform binary and starts it with the caller’s arguments.
AI rationale
The scanner’s dynamic-evaluation lead resolves to a test helper, and the inspected postinstall behavior is plugin cache invalidation plus platform checks. The selected optional platform binary is an executable dependency whose source is unavailable here, so the review remains unresolved without evidence that it is malicious.
Evidence
package.jsonbin/oh-my-opencode.jspostinstall.mjsdist/skills/ulw-research/scripts/layout-probe.test.ts
Decision evidence
public snapshotAI called this Manual Review at 84.0% confidence as Unknown with medium false-positive risk.
AI review observations
- The manifest declares platform-specific optional binaries pinned to version 5.1.48; the launcher resolves the platform candidate and executes it.
- The JavaScript launcher selects a resolved binary and passes it the CLI arguments; the binary’s source was not available for this review.
- The postinstall hook runs a version/platform check and invalidates cache directories whose names match this plugin.
- The flagged dynamic evaluation occurs in a test helper that builds a selector function from a test source string.
Evidence against
- No concrete attack behavior was established in the inspected JavaScript or lifecycle hook.
- The scanner-highlighted evaluation is in a test file, and the launcher’s platform selection is consistent with the package’s declared binary layout.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
Source & flagged code
23 flaggedpackage.jsonView file
1Install-time code directly mutates a foreign AI-agent control surface:
L62: "docs/reference/web-terminal-visual-qa.md",
L63: ".opencode/command",
L64: ".opencode/skills",
L65: ".agents/command",
L66: ".agents/skills",
L67: "packages/lsp-tools-mcp/package.json",
...
L97: "packages/prompts-core/prompts/ultrawork/codex.md",
L98: "packages/omo-codex/plugin/.codex-plugin",
L99: "!packages/omo-codex/plugin/node_modules",
...
L150: "test:fast": "bun run script/test-fast.ts",
L151: "test:senpi": "bun run build:senpi-plugin && tsgo --noEmit -p packages/omo-senpi/tsconfig.json && bun test --timeout 20000 packages/omo-senpi && bun test ./.agents/skills/senpi-qa/...
L152: "test:windows-codex": "bun run test:codex",
Write operation from dist/tui.js:
L2183: // packages/utils/src/xdg-data-dir.ts
L2184: i
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
5 Critical13 High9 Medium6 Low
CriticalSame File Env Network Executiondist/skills/browser/runtime/omowright/index.js
CriticalDownload Executedist/skills/browser/runtime/omowright/index.js
CriticalEncrypted Payload Temp Executiondist/cli-node/index.js
CriticalAi Agent Control Hijackpackage.json
CriticalPrevious Version Dangerous Deltadist/skills/ulw-research/scripts/source-commands.mjs
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
HighCredential Redirect Persistencedist/index.js
HighCommand Output Exfiltration
Affected versions and remediation
This report applies to oh-my-opencode@5.1.48.
See all versions of oh-my-opencode for other recorded verdicts.
- Review the evidence and your use of oh-my-opencode@5.1.48 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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