registry / @plannotator/opencode / 0.27.8
@plannotator/opencode@0.27.8
Plannotator plugin for OpenCode - interactive plan review with visual annotation
AI Security Review
scanned 28d ago · by lpm-firewall-aiThe package automatically installs its own OpenCode commands and skill, which is an agent extension lifecycle risk. The reviewed runtime excerpts did not establish exfiltration, destructive behavior, remote payload execution, or broader control-surface abuse.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Package installation runs the postinstall lifecycle hook.
Impact
The user's OpenCode configuration gains the plugin's commands and skill.
Mechanism
The hook creates the OpenCode commands and Plannotator skill directories and copies package files there.
AI rationale
The package automatically installs its own OpenCode commands and skill, which is an agent extension lifecycle risk. The reviewed runtime excerpts did not establish exfiltration, destructive behavior, remote payload execution, or broader control-surface abuse.
Evidence
package.jsondist/server.js
Decision evidence
public snapshotAI called this Suspicious at 95.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- The postinstall hook copies package command and skill files into the user's OpenCode configuration directories.
- The runtime imports its bundled embedded module only when the embedded runtime is selected and available; the inspected excerpts show no confirmed attack behavior.
Evidence against
- The package describes itself as an OpenCode plan-review plugin and exposes a plugin entrypoint.
- The inspected runtime excerpts show conditional runtime loading and CLI launch behavior, with no network send or credential export in those excerpts.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket
HighEntropyStringsUrlStrings
Source & flagged code
6 flaggedpackage.jsonView file
•scripts.postinstall = mkdir -p ${XDG_CONFIG_HOME:-$HOME/.config}/opencode/commands && cp ./commands/*.md ${XDG_CONFIG_HOME:-$HOME/.config}/opencode/commands/ 2>/dev/null || true; mkdir -p ${XDG_CONFIG_H...
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = mkdir -p ${XDG_CONFIG_HOME:-$HOME/.config}/opencode/commands && cp ./commands/*.md ${XDG_CONFIG_HOME:-$HOME/.config}/opencode/commands/ 2>/dev/null || true; mkdir -p ${XDG_CONFIG_H...
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdist/server.jsView file
•matchType = previous_version_dangerous_delta
matchedPackage = @plannotator/opencode@0.27.14
matchedIdentity = npm:QHBsYW5ub3RhdG9yL29wZW5jb2Rl:0.27.14
similarity = 0.500
summary = stored previous version shares package body but lacks this dangerous source file
Findings
3 High6 Medium6 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSemantic Analysis Limiteddist/server.js#virtual:normalized:round1
HighPrevious Version Dangerous Deltadist/server.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requiredist/server.js
MediumNetwork
MediumEnvironment Vars
MediumOversized Source Filedist/embedded.js
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowEval
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @plannotator/opencode@0.27.8.
See all versions of @plannotator/opencode for other recorded verdicts.
- Review the evidence and your use of @plannotator/opencode@0.27.8 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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