registry / @plannotator/opencode / 0.27.22
@plannotator/opencode@0.27.22
Plannotator plugin for OpenCode - interactive plan review with visual annotation
AI Security Review
scanned 28d ago · by lpm-firewall-aiThe automatic postinstall mutation of OpenCode configuration is a first-party agent extension lifecycle risk. The inspected source does not establish a concrete malicious chain, so this warrants a warning rather than a block.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
npm installation runs the postinstall hook.
Impact
Plannotator commands and a skill become available in the user's OpenCode configuration.
Mechanism
The hook creates OpenCode command and skill directories and copies package-owned files into them.
AI rationale
The automatic postinstall mutation of OpenCode configuration is a first-party agent extension lifecycle risk. The inspected source does not establish a concrete malicious chain, so this warrants a warning rather than a block.
Evidence
package.json
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The postinstall hook automatically copies package commands and a skill into the user's OpenCode configuration directories.
Evidence against
- The inspected setup targets the package's own OpenCode command and skill locations; no foreign agent control surface or additional concrete attack behavior was identified.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket
HighEntropyStringsUrlStrings
Oversized source lightweight scan
dist/embedded.js14.5 MB file, sampled 256 KB
Source & flagged code
5 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
2 High6 Medium6 Low
HighInstall Time Lifecycle Scriptspackage.json
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@0.27.22.
See all versions of @plannotator/opencode for other recorded verdicts.
- Review the evidence and your use of @plannotator/opencode@0.27.22 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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