registry / @plannotator/opencode / 0.27.12
@plannotator/opencode@0.27.12
Plannotator plugin for OpenCode - interactive plan review with visual annotation
AI Security Review
scanned 2mo ago · by lpm-firewall-aiThis package automatically modifies an AI-agent control surface at install time, creating a concrete lifecycle risk. The writes are limited to Plannotator integration assets and the inspected runtime does not establish a malicious payload chain.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
npm postinstall, followed by use of an installed OpenCode command
Impact
A package install changes agent behavior without an explicit setup command; the reviewed assets are package-scoped integrations.
Mechanism
Automatic global OpenCode command and skill installation
AI rationale
This package automatically modifies an AI-agent control surface at install time, creating a concrete lifecycle risk. The writes are limited to Plannotator integration assets and the inspected runtime does not establish a malicious payload chain.
Evidence
package.jsoncommands/plannotator-review.md${XDG_CONFIG_HOME:-$HOME/.config}/opencode/commands/${XDG_CONFIG_HOME:-$HOME/.config}/opencode/skills/plannotator/skills/plannotator/SKILL.md
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- Its postinstall hook automatically writes command and skill files into the user's global OpenCode configuration.
- The installed command instructs the OpenCode agent to execute the Plannotator CLI with Bash.
Evidence against
- The installed files are Plannotator-namespaced integration assets rather than arbitrary project files.
- Reviewed runtime code launches the CLI only through plugin actions; no install-time network or credential collection was found.
- No runtime dependency on this package itself appears in the manifest.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShellWebSocket
HighEntropyStringsUrlStrings
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@0.27.10
matchedIdentity = npm:QHBsYW5ub3RhdG9yL29wZW5jb2Rl:0.27.10
similarity = 0.500
summary = stored previous version shares package body but lacks this dangerous source file
Findings
2 High6 Medium5 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
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @plannotator/opencode@0.27.12.
See all versions of @plannotator/opencode for other recorded verdicts.
- Review the evidence and your use of @plannotator/opencode@0.27.12 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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