gamussa/flink-sql
Apache Flink SQL, Table API, and UDF development for both OSS Flink and Confluent Cloud
92
89%
Does it follow best practices?
Impact
98%
1.22xAverage score across 5 eval scenarios
Low
Low-risk findings worth noting
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
W011: Third-party content exposure detected (indirect prompt injection risk).
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
The skill's Confluent Cloud documentation (references/confluent-cloud.md — "External Tables" / KEY_SEARCH_AGG and REST connector examples) shows creating connections to arbitrary JDBC/REST/MongoDB/Couchbase endpoints and using LATERAL TABLE(KEY_SEARCH_AGG(...)) to fetch and incorporate external (potentially untrusted) data into queries, so the agent would ingest and act on third‑party content at runtime.
Where we found it
packages.confluent.io
domain · 1 site
Documentation reference to Confluent Maven repository in a pom.xml example - not a runtime fetch by the plugin
references/confluent-cloud.md
163
<url>https://packages.confluent.io/maven/</url>
docs.confluent.io
domain · 1 site
Documentation link to Confluent's official documentation for External Tables / Key Search
references/confluent-cloud.md
558
**Reference:** [Key Search with External Sources](https://docs.confluent.[REDACTED].html)
github.com
domain · 8 sites
Reference links to GitHub repositories in documentation - not runtime fetches by the plugin
cwiki.apache.org
domain · 1 site
Documentation link to Apache Flink FLIP-440 specification
references/ptf-guide.md
5
See [FLIP-440](https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=298781093) for specification.
issues.apache.org
domain · 2 sites
Documentation links to Apache Flink JIRA issues
references/ptf-guide.md
600
Due to [FLINK-37618](https://issues.apache.org/jira/browse/FLINK-37618), use `CAST(5000 AS BIGINT)` instead of `INTERVAL '5' SECONDS`.
references/ptf-guide.md
717
- `INTERVAL` arguments not supported ([FLINK-37618](https://issues.apache.org/jira/browse/FLINK-37618)) — use `CAST(ms AS BIGINT)`
nightlies.apache.org
domain · 1 site
Documentation link to Apache Flink nightly documentation
references/ptf-guide.md
725
- [Apache Flink PTF Documentation](https://nightlies.apache.[REDACTED]/)
maven.apache.org
domain · 4 sites
XML namespace declarations in Maven POM example - not runtime fetches
references/udf-guide.md
132
<project xmlns="http://maven.apache.org/POM/4.0.0"
references/udf-guide.md
133
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
references/udf-guide.md
134
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
references/udf-guide.md
135
http://maven.apache.org/xsd/maven-4.0.0.xsd">
- Audited
- Security analysis