registry / oh-my-opencode / 5.1.30
oh-my-opencode@5.1.30
⚠ 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 24d ago · by lpm-firewall-aiThe source excerpts do not substantiate the scanner’s remote-response execution claim, but they are insufficient to resolve the reported risk across the large bundle. Manual review is warranted without inferring malicious behavior from scanner labels alone.
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
Package installation runs the postinstall hook; configured HTTP hooks run when invoked by the host application.
Impact
The inspected evidence does not establish a malicious effect; unresolved bundle behavior requires further review.
Mechanism
The inspected hook sends input to its configured URL and reads the response. The reviewed excerpts do not show the response being executed as code.
AI rationale
The source excerpts do not substantiate the scanner’s remote-response execution claim, but they are insufficient to resolve the reported risk across the large bundle. Manual review is warranted without inferring malicious behavior from scanner labels alone.
Decision evidence
public snapshotAI called this Manual Review at 63.0% confidence as Unknown with medium false-positive risk.
AI review observations
- package.json has a postinstall hook that runs postinstall.mjs.
- The HTTP hook posts input to hook.url and handles the response as text or an exit result; this excerpt does not establish remote code execution.
- The bundled CLI copies MCP runtime files only when the matching source argument is present.
- The inspected new Function calls construct a schema validator and load bun:sqlite; neither excerpt shows execution of remotely supplied code.
Evidence against
- The source is readable at the cited locations, but the available review did not resolve the reported remote-response execution finding or the broader bundle behavior.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetryUrlStrings
Source & flagged code
24 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",
...
L147: "test:fast": "bun run script/test-fast.ts",
L148: "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/...
L149: "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 Critical14 High9 Medium6 Low
CriticalSame File Env Network Executiondist/skills/browser/runtime/omowright/index.js
CriticalDownload Executedist/skills/browser/runtime/omowright/index.js
CriticalRemote Response Code Executiondist/index.js
CriticalAi Agent Control Hijackpackage.json
CriticalPrevious Version Dangerous Deltapackages/git-bash-mcp/dist/cli.js
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 Exfiltrationdist/cli-node/index.js
Affected versions and remediation
This report applies to oh-my-opencode@5.1.30.
See all versions of oh-my-opencode for other recorded verdicts.
- Review the evidence and your use of oh-my-opencode@5.1.30 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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