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Confluent MCP Server
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
3 critical findings reported by cisco-skill-scanner, agent-audit-kit, 1 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
This artifact ships from 2 sources and their verdicts differ. The worst is github (Flagged). Installing from a cleaner source does not mean the others are safe — check the source you actually install from.
github: https://github.com/confluentinc/mcp-confluent, 155 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- @confluentinc/mcp-confluent
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
6 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
23 findings · 0.9s
v2.0.11
47 findings · 19.2s
v0.3.74
83 findings · 26.8s
v0.1.0
2 findings · 23.0s
v0.1.0
0 findings · 23.0s
v0.1.0
0 findings · 25.4s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
2 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Sep 3, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source: complete | rejected |
| Aug 11, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 155 findings across every scanner that examined this package. 1 of 3 findings rated critical by their scanner was among the dismissals.
Not reviewed is not the same as clean. Those 4 findings stand exactly as their scanners reported them, at full severity, as they would have without this review.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
37 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: COMMAND_INJECTION_JS_CHILD_PROCESS, AAK-ANTHROPIC-SDK-001, opt.nerlo-rules.nerlo-js-secret-to-network-egress and 7 more · Files: /repo/tests/harness/oauth-port-lock.test.ts, tests/harness/multi-start-server.ts, tests/harness/start-server.ts and 24 more · reported by cisco-skill-scanner, agent-audit-kit, nerlo-behavioral
7 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE, MANIFEST_INVALID_NAME · Files: /repo/.github/SKILL.md, /repo/docs/SKILL.md, /repo/docs/workflows/SKILL.md · reported by cisco-skill-scanner
2 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: permissions-no-block, hooks-no-pretooluse · Files: .vscode/settings.json · reported by agentshield
1 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: agents-encoded-payload-3415 · Files: CLAUDE.md · reported by agentshield
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
22 AAK-MCP-OPENAPI-LAZY-DESCRIPTION-001
Files: openapi.json · reported by agent-audit-kit
10 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/src/cli.ts, /repo/src/config/index.ts, /repo/src/confluent/oauth/callback-pages.ts and 2 more · reported by cisco-skill-scanner
7 AAK-OAUTH-007
Files: pnpm-lock.yaml, src/confluent/oauth-client-manager.ts, src/confluent/oauth/auth-context.ts and 4 more · reported by agent-audit-kit
6 AAK-MCP-018
Files: src/mcp/server.ts, src/mcp/transports/http.ts, src/mcp/transports/session-registry.ts and 3 more · reported by agent-audit-kit
6 HIDDEN_DATA_FILE
Files: /repo/.semaphore/publish-npm.yml, /repo/.semaphore/integration.yml, /repo/.semaphore/pnpm-audit.yml and 3 more · reported by cisco-skill-scanner
5 MANIFEST_MISSING_LICENSE
3 The model gave no reason we were willing to publish, and a verdict without one is not usable evidence.
Rules: AAK-MCP-SSRF-001 · Files: tests/harness/multi-start-server.ts, tests/harness/start-server.ts, tests/harness/cp-start-server.ts · reported by agent-audit-kit
1 The model called these false positives and our own check did not agree, so the dismissal was refused.
Rules: HIDDEN_DATA_FILE · Files: /repo/.env.integration.example · reported by cisco-skill-scanner
Critical findings include credential exposure and potential for unauthorized operations.
The artifact contains critical findings related to potential credential exposure, including a JWT token in `src/confluent/openapi-schema.d.ts` and other secrets in `src/confluent/tools/handlers/flink/diagnostics/detect-issues-handler.ts` and `src/mcp/transports/auth.ts`. It also exhibits critical capabilities for unauthorized operations via `AAK-MCP-001` in `.mcp.json` and `AAK-SKILL-003` in `.claude/skills/pr-review/SKILL.md`. High severity findings indicate potential for sensitive data logging and further credential exposure, alongside multiple medium severity issues related to OAuth, SSRF, and permissions.
Concern level assessed by the review: Critical. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.
Files: /repo/.claude/skills/vitest/SKILL.md, /repo/.claude/skills/pr-review/SKILL.md, /repo/.claude/skills/mcp-docs/SKILL.md and 2 more · reported by cisco-skill-scanner
3 DATA_EXFIL_JS_NETWORK
Files: /repo/src/confluent/oauth/token-chain.ts, /repo/src/confluent/tools/handlers/connect/get-connector-logs-handler.ts · reported by cisco-skill-scanner
2 AAK-ANTHROPIC-SDK-001
Files: src/mcp/transports/stdio.ts, src/mcp/transports/manager.ts · reported by agent-audit-kit
2 AAK-OAUTH-005
Files: src/confluent/oauth/token-chain.ts, src/confluent/tools/handlers/connect/get-connector-logs-handler.ts · reported by agent-audit-kit
2 AAK-OAUTH-006
Files: src/confluent/oauth/pkce-login.ts, src/confluent/oauth/token-chain.ts · reported by agent-audit-kit
2 AAK-SECRET-004
Files: src/confluent/tools/handlers/flink/diagnostics/detect-issues-handler.ts, src/mcp/transports/auth.ts · reported by agent-audit-kit
2 AAK-SPLUNK-TOKLOG-001
Files: src/server-main.ts, src/confluent/middleware.ts · reported by agent-audit-kit
2 hooks-chained-commands-0
Files: settings.json, .claude/settings.json · reported by agentshield
2 hooks-no-pretooluse
Files: settings.json, .claude/settings.json · reported by agentshield
2 hooks-no-stop-hooks
Files: settings.json, .claude/settings.json · reported by agentshield
2 hooks-silent-fail-109
Files: settings.json, .claude/settings.json · reported by agentshield
2 hooks-silent-fail-121
Files: settings.json, .claude/settings.json · reported by agentshield
2 permissions-missing-deny->-/dev/
Files: settings.json, .claude/settings.json · reported by agentshield
2 permissions-missing-deny-chmod-777
Files: settings.json, .claude/settings.json · reported by agentshield
2 permissions-missing-deny-rm--rf
Files: settings.json, .claude/settings.json · reported by agentshield
2 permissions-missing-deny-ssh
Files: settings.json, .claude/settings.json · reported by agentshield
2 permissions-missing-deny-sudo
Files: settings.json, .claude/settings.json · reported by agentshield
2 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/.claude/rules/SKILL.md · reported by cisco-skill-scanner
1 AAK-MCP-001
Files: .mcp.json · reported by agent-audit-kit
1 AAK-MCP-009
Files: .mcp.json · reported by agent-audit-kit
1 AAK-MCP-ATTEST-001
Files: .mcp.json · reported by agent-audit-kit
1 AAK-MCP-STATELESS-001
Files: src/mcp/transports/http.ts · reported by agent-audit-kit
1 AAK-OAUTH-3P-001
Files: package.json · reported by agent-audit-kit
1 AAK-SKILL-003
Files: .claude/skills/pr-review/SKILL.md · reported by agent-audit-kit
1 AAK-SUPPLY-003
Files: package.json · reported by agent-audit-kit
1 AAK-TASKS-003
Files: src/confluent/tools/handlers/connect/get-connector-tasks-handler.ts · reported by agent-audit-kit
1 AAK-TRUST-007
Files: .claude/settings.json · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo · reported by cisco-skill-scanner
1 OVERSIZED_FILE
Files: /repo/assets/goose-cli-demo.gif · reported by cisco-skill-scanner
1 SECRET_JWT_TOKEN
Files: /repo/src/confluent/openapi-schema.d.ts · reported by cisco-skill-scanner