registry / @plannotator/opencode / 0.28.49
@plannotator/opencode@0.28.49
Plannotator plugin for OpenCode - interactive plan review with visual annotation
AI Security Review
scanned 10h ago · by lpm-firewall-aiThe package’s postinstall can install its own commands and skill into the user’s OpenCode config, an automatic extension setup that merits a warning. The flagged runtime credential flows inspected here use loopback endpoints, and I found no concrete exfiltration behavior.
Static reason
High-risk behavior combination matched malicious policy.; previous stored version diff introduced dangerous source
Trigger
The postinstall script runs during package installation when lifecycle scripts are enabled and the package is under node_modules.
Impact
The package’s commands and skill become available to OpenCode without a separate user command. The inspected runtime credential flows communicate with local services only.
Mechanism
It copies command Markdown files and the Plannotator skill into the OpenCode config directory; the script also supports forcing or skipping this copy with an environment variable.
AI rationale
The package’s postinstall can install its own commands and skill into the user’s OpenCode config, an automatic extension setup that merits a warning. The flagged runtime credential flows inspected here use loopback endpoints, and I found no concrete exfiltration behavior.
Evidence
package.jsonscripts/postinstall.cjscommands/plannotator-review.mddist/server.jscommands/*.mdskills/plannotator/SKILL.md${XDG_CONFIG_HOME:-~/.config}/opencode/commands/*.md${XDG_CONFIG_HOME:-~/.config}/opencode/skills/plannotator/SKILL.md
Network endpoints2
127.0.0.1:${port}/mcp127.0.0.1:${registry.port}${path}
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- The postinstall hook runs a Node script that copies package commands and its Plannotator skill into the OpenCode config directory.
- The script copies assets when the package is installed under node_modules; it also supports an explicit environment override.
- The flagged credential-bearing requests target 127.0.0.1 and use a token read from the local Inbox registry.
Evidence against
- The manifest identifies this as a Plannotator OpenCode plugin, and the copied command is for explicitly requested code review.
- The package’s runtime requests inspected here use loopback addresses; no unrelated external receiver was identified.
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 hc(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 Oc(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@0.28.49.
See all versions of @plannotator/opencode for other recorded verdicts.
- Review the evidence and your use of @plannotator/opencode@0.28.49 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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