registry / @plannotator/opencode / 0.28.40
@plannotator/opencode@0.28.40
Plannotator plugin for OpenCode - interactive plan review with visual annotation
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe package automatically installs its own OpenCode commands and skill into user configuration during postinstall. This is an agent-extension lifecycle risk, but the inspected runtime credential transport targets localhost and no malicious exfiltration was identified.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Package installation when the package manager runs postinstall and the package path contains node_modules.
Impact
The installation changes OpenCode user configuration and makes the package's skill and commands available to the agent.
Mechanism
scripts/postinstall.cjs copies command Markdown files and the Plannotator SKILL.md into the OpenCode config directory.
AI rationale
The package automatically installs its own OpenCode commands and skill into user configuration during postinstall. This is an agent-extension lifecycle risk, but the inspected runtime credential transport targets localhost and no malicious exfiltration was identified.
Evidence
package.jsonscripts/postinstall.cjs<XDG_CONFIG_HOME or ~/.config>/opencode/commands/*.md<XDG_CONFIG_HOME or ~/.config>/opencode/skills/plannotator/SKILL.md
Network endpoints1
127.0.0.1:${registry.port}${path}
Decision evidence
public snapshotAI called this Suspicious at 95.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package runs scripts/postinstall.cjs automatically through its postinstall lifecycle script.
- For an installed package under node_modules, postinstall copies command stubs and a skill into the OpenCode user config directory.
- The destination is <XDG_CONFIG_HOME or ~/.config>/opencode, outside the package directory.
- The runtime bridge sends its bearer token and request data only to a loopback address, 127.0.0.1.
Evidence against
- The postinstall copies the package's own OpenCode commands and Plannotator skill; no unrelated payload or external contact was identified.
- The server's credential-bearing request is addressed to a local service, not an external host.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsMinifiedTelemetry
Source & flagged code
5 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 Critical1 High6 Medium7 Low
CriticalHardcoded Runtime Data Exfiltrationdist/index.js
HighInstall Time Lifecycle Scriptspackage.json
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
LowTelemetry
LowUrl Strings
Affected versions and remediation
This report applies to @plannotator/opencode@0.28.40.
See all versions of @plannotator/opencode for other recorded verdicts.
- Review the evidence and your use of @plannotator/opencode@0.28.40 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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