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Python
Hybrid

Check Dependencies

check_dependencies
Read-onlyIdempotent

Audit project dependencies against CVE databases to find known vulnerabilities in your package list. Submit up to 50 npm, PyPI, Maven, or RubyGems packages per call for security scanning.

Instructions

Audit project dependencies (npm/PyPI/Maven/RubyGems/etc.) against CVE database: find known vulnerabilities in your package list. Bulk query up to 50 packages per call (same for Free and Pro). Use for dependency security scanning; use cve_lookup for single CVE. Free: 30/hr (1 per package), Pro: 500/hr. Returns {findings, total, by_severity, summary}. Each finding includes fixed_in (first release outside the matched vulnerable range: its exclusive upper bound from NVD, MITRE, GitHub advisory or OSV data, usually the first patched version) when a version range matched — omitted from wire when the range has no exclusive upper bound or no input version was supplied; remediation copy then says 'Check if ... is affected ... and upgrade if so' instead of 'Upgrade to X.Y.Z or later'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
packagesYesList of dependency packages to audit. Each item is an object with 'name' (required, max 200 chars, e.g. 'lodash', 'django', 'log4j-core') and optional 'version' (max 100 chars, e.g. '4.17.0', '2.14.1'). Only 'name' and 'version' fields are used; extra fields are ignored. Example: [{"name": "lodash", "version": "4.17.0"}, {"name": "django"}]. Maximum 50 per request (same cap for Free and Pro).

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv1.36.3
    • changedOutput schema / $defs / DepFinding / properties / fixed_in / description
      Previous value: -"First patched release per NVD/MITRE version range data (CVE affected_products[].version_end). Excluded from the wire (response_model_exclude_none=True) when the matched range is open-ended or no input version was supplied — in those cases inspect remediation copy."New value: +"First release outside the matched vulnerable range: the range's exclusive upper bound (CVE affected_products[].version_end from NVD, MITRE, GitHub advisory or OSV data; usually the first patched release). Excluded from the wire (response_model_exclude_none=True) when the matched range has no exclusive upper bound (open-ended, or bounded only by an inclusive last-affected version) or no input version was supplied — in those cases inspect remediation copy."
  2. Changed1 schema field changedv1.34.4
    • changedOutput schema / $defs / PivotHint / properties / tool / enum
      Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "calculate_risk_score",
-  "get_cvss_details",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_security_posture",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage",
-  "sigma_rule_lookup",
-  "bulk_sigma_rule_lookup",
-  "tech_stack_cve_audit",
-  "contrast_scan"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_security_posture",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "geo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage",
+  "sigma_rule_lookup",
+  "bulk_sigma_rule_lookup",
+  "tech_stack_cve_audit",
+  "contrast_scan"
+]
  3. Changed1 schema field changedv1.33.23
    • changedOutput schema / $defs / PivotHint / properties / tool / enum
      Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "calculate_risk_score",
-  "get_cvss_details",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_security_posture",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage",
-  "sigma_rule_lookup",
-  "bulk_sigma_rule_lookup",
-  "tech_stack_cve_audit"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_security_posture",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage",
+  "sigma_rule_lookup",
+  "bulk_sigma_rule_lookup",
+  "tech_stack_cve_audit",
+  "contrast_scan"
+]
  4. Addedv1.33.21
  5. Removedv1.33.14
  6. Changed1 schema field changedv1.33.11
    • changedInput schema / properties / packages / description
      Previous value: -"List of dependency packages to audit. Each item is an object with 'name' (required, max 200 chars, e.g. 'lodash', 'django', 'log4j-core') and optional 'version' (max 100 chars, e.g. '4.17.0', '2.14.1'). Only 'name' and 'version' fields are used; extra fields are ignored. Example: [{\"name\": \"lodash\", \"version\": \"4.17.0\"}, {\"name\": \"django\"}]. Maximum 10 per request for free tier, 50 for Pro."New value: +"List of dependency packages to audit. Each item is an object with 'name' (required, max 200 chars, e.g. 'lodash', 'django', 'log4j-core') and optional 'version' (max 100 chars, e.g. '4.17.0', '2.14.1'). Only 'name' and 'version' fields are used; extra fields are ignored. Example: [{\"name\": \"lodash\", \"version\": \"4.17.0\"}, {\"name\": \"django\"}]. Maximum 50 per request (same cap for Free and Pro)."
  7. Addedv1.33.1
  8. Removedv1.33.0
  9. Addedv1.32.0
  10. Removedv1.30.2
  11. Changed1 schema field changedv1.29.1
    • changedOutput schema / $defs / PivotHint / properties / tool / enum
      Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage"
+]
  12. Changed3 schema fields changedv1.27.1
    • addedOutput schema / $defs / DependenciesResponse / properties / processed
      Added value: +{
+  "default": 0,
+  "description": "Count of packages actually scanned. Equal to input count unless dynamic-budget partial-fill kicked in. Field name aligns with the other 4 bulk endpoints (atlas/cve/ioc/domain).",
+  "title": "Processed",
+  "type": "integer"
+}
    • addedOutput schema / $defs / DependenciesResponse / properties / skipped_due_to_rate_limit
      Added value: +{
+  "description": "Package names that were not scanned because the caller's remaining hourly quota was smaller than the input list. Empty when full budget was available.",
+  "items": {
+    "type": "string"
+  },
+  "title": "Skipped Due To Rate Limit",
+  "type": "array"
+}
    • addedOutput schema / $defs / DependenciesResponse / properties / total / description
      Added value: +"Total CVE findings across processed packages (not the input package count)."
  13. Changed1 schema field changedv1.25.0
    • changedOutput schema / $defs / PivotHint / properties / tool / enum
      Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_disposable",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage"
+]
  14. Addedv1.21.0
  15. Removedv1.0.18
  16. Changed5 schema fields changedv1.0.1
    • changedInput schema / properties / packages / description
      Previous value: -""New value: +"List of dependency packages to audit. Each item is an object with 'name' (required, max 200 chars, e.g. 'lodash', 'django', 'log4j-core') and optional 'version' (max 100 chars, e.g. '4.17.0', '2.14.1'). Only 'name' and 'version' fields are used; extra fields are ignored. Example: [{\"name\": \"lodash\", \"version\": \"4.17.0\"}, {\"name\": \"django\"}]. Maximum 10 per request for free tier, 50 for Pro."
    • addedInput schema / properties / packages / items
      Added value: +{
+  "additionalProperties": true,
+  "type": "object"
+}
    • addedInput schema / properties / packages / title
      Added value: +"Packages"
    • addedInput schema / title
      Added value: +"check_dependenciesArguments"
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "result": {
+      "title": "Result",
+      "type": "string"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "title": "check_dependenciesOutput",
+  "type": "object"
+}
  17. First observedv1.0.0

TDQS

A4.7/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already cover safety (readOnly, idempotent, non-destructive), and the description adds substantial extra context: Free 30/hr with 1 credit per package vs Pro 500/hr, the 50-package cap, and precise semantics for when 'fixed_in' is present or omitted from the wire response and how remediation copy changes.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the purpose in the first clause and stays information-dense with no filler. The trailing paragraph on 'fixed_in' is long and overlaps with output-shape detail, making it slightly heavier than necessary for a description field.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Output schema exists, so return values needn't be explained, yet the description still details the response shape (findings, total, by_severity, summary) and the conditional 'fixed_in' field. This is thorough, though part of it duplicates what the output schema already specifies.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents 'name'/'version' thoroughly, and the description largely mirrors that ('up to 50 packages per call'). It adds a small amount of meaning via the rate-limit accounting ('1 per package') and the same-cap-for-Free-and-Pro note, but does not go much beyond the schema on parameter semantics.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource: 'Audit project dependencies ... against CVE database' with an enumerated ecosystem list (npm/PyPI/Maven/RubyGems). It also distinguishes itself from the nearest sibling by naming cve_lookup for single-CVE work.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly gives the use case ('dependency security scanning') and the alternative ('use cve_lookup for single CVE'), with a clear boundary between bulk dependency auditing and single-CVE lookup. Bulk cap (50) and rate limits are stated up front.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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