registry / oh-my-opencode / 5.1.45
oh-my-opencode@5.1.45
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 12d ago · by lpm-firewall-aiThe runtime performs a guarded, package-owned TUI config update during plugin startup. The inspected postinstall hook only invalidates matching package cache entries and checks the platform binary; no concrete malicious behavior was established.
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
OpenCode loads the package as a plugin and startup reaches ensureTuiPluginEntry.
Impact
The package's TUI extension can be enabled through an automatic config change without a separate setup command; no broader agent config change is established.
Mechanism
The helper reads the server config, selects this package's current or legacy plugin entry, then writes it to tui.json while retaining other entries.
AI rationale
The runtime performs a guarded, package-owned TUI config update during plugin startup. The inspected postinstall hook only invalidates matching package cache entries and checks the platform binary; no concrete malicious behavior was established.
Evidence
dist/index.jstui.json
Decision evidence
public snapshotAI called this Suspicious at 92.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- package.json names dist/index.js as the package entry.
- Plugin startup automatically calls ensureTuiPluginEntry.
- The helper reads OpenCode's server plugin config and returns without changing files if it finds no server entry.
- It accepts the current or legacy package plugin identity, or a file entry recognized as belonging to this package.
- For a valid TUI config, it retains other plugin entries and writes the matching package entry to tui.json.
- The npm postinstall clears cache directories matching this package's names and checks for the platform binary.
Evidence against
- The TUI config change is conditional on an existing server plugin entry for this package, and malformed config is left alone.
- The inspected install hook does not perform the TUI config change.
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/programming/scripts/typescript/new-project.test.ts
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
High
Affected versions and remediation
This report applies to oh-my-opencode@5.1.45.
See all versions of oh-my-opencode for other recorded verdicts.
- Review the evidence and your use of oh-my-opencode@5.1.45 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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