registry / @plannotator/opencode / 0.28.38
@plannotator/opencode@0.28.38
Plannotator plugin for OpenCode - interactive plan review with visual annotation
AI Security Review
scanned 6d ago · by lpm-firewall-aiThe install hook automatically adds the package’s own OpenCode commands and skill to user configuration, which fits the warning-only agent extension lifecycle risk. The flagged runtime requests use localhost, and the download-and-run match is only an error message; no malicious behavior was identified.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
Package installation when the package manager runs lifecycle scripts.
Impact
Adds the package’s agent commands and skill to the user’s OpenCode configuration without a separate setup command.
Mechanism
The hook copies command Markdown files to ${XDG_CONFIG_HOME:-~/.config}/opencode/commands and the skill to .../opencode/skills/plannotator.
AI rationale
The install hook automatically adds the package’s own OpenCode commands and skill to user configuration, which fits the warning-only agent extension lifecycle risk. The flagged runtime requests use localhost, and the download-and-run match is only an error message; no malicious behavior was identified.
Evidence
package.jsonscripts/postinstall.cjsdist/server.js${XDG_CONFIG_HOME:-~/.config}/opencode/commands/*.md${XDG_CONFIG_HOME:-~/.config}/opencode/skills/plannotator/SKILL.md
Network endpoints1
127.0.0.1
Decision evidence
public snapshotAI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package runs scripts/postinstall.cjs automatically after installation.
- The hook copies the package’s command Markdown files and skill into the user’s OpenCode config directories.
- Runtime bearer-token requests inspected target 127.0.0.1, not an external host.
- The install hook makes no network request in the inspected code.
Evidence against
- The copied commands and skill are Plannotator’s own OpenCode extension assets.
- The install hook is limited to creating directories and copying Markdown files.
- The reported download-and-run match is an error message recommending the CLI installer when the CLI is missing.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetryUrlStrings
Source & flagged code
6 flaggedpackage.jsonView file
•scripts.postinstall = node scripts/postinstall.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.cjs
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdiagram-engine/engine.jsView file
1function gc(e,t){for(var n=0;n<t.length;n++){const r=t[n];if(typeof r!="string"&&!Array.isArray(r)){for(const o in r)if(o!=="default"&&!(o in e)){const s=Object.getOwnPropertyDescr...
L2: `);let n=t.length;for(;n>0&&(t[n-1]??"").trim()==="";)n-=1;let r=1;for(;r<=n&&(t[r-1]??"").trim()==="";)r+=1;return n===0||r>n?null:[r,n]}function Rc(e){for(const t of e.split(`
Medium
Findings
1 Critical2 High6 Medium7 Low
CriticalHardcoded Runtime Data Exfiltrationdist/index.js
HighInstall Time Lifecycle Scriptspackage.json
HighPrevious Version Dangerous Deltadist/server.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requirediagram-engine/engine.js
MediumNetwork
MediumEnvironment Vars
MediumOversized Source Filediagram-engine/mermaid.js
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowEval
LowFilesystem
LowHigh Entropy Strings
Low
Affected versions and remediation
This report applies to @plannotator/opencode@0.28.38.
See all versions of @plannotator/opencode for other recorded verdicts.
- Review the evidence and your use of @plannotator/opencode@0.28.38 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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