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UPinar/contrastapi

v1.33.6 Bugfix

This release fixes issues for SREs watching stability and regressions.

Published 18d MCP Security & Auth
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

ai-agents ai-security api claude cve security
+13 more
domain-recon email-security email-validation llm-tools mcp mitre-atlas mitre-d3fend model-context-protocol osint sigma-rules threat-intelligence vulnerability-management web-intel

Summary

AI summary

Dropped JSON‑Schema annotation keywords from the tools/list response reducing payload size.

Changes in this release

Performance Medium

tools/list response size reduced from ~586KB to ~295KB (-57%), gzip from ~87KB to ~36KB (-58%)

tools/list response size reduced from ~586KB to ~295KB (-57%), gzip from ~87KB to ~36KB (-58%)

Source: llm_adapter@2026-05-21

Confidence: high

 —
Refactor Low

Dropped JSON-Schema annotation keywords (description, title, examples, default) in MCP tools/list schema

Dropped JSON-Schema annotation keywords (description, title, examples, default) in MCP tools/list schema

Source: granite4.1:30b@2026-05-21-audit

Confidence: low

 —
Full changelog

Follow-up to v1.33.5.

Performance

The MCP tools/list response carried ~586KB of JSON-Schema annotation text (description/title/examples/default) across nested $defs — 86% of a 679KB response. These annotation keywords are now dropped at schema level on every tools/list (fast-path cache + cache-None lazy-rebuild). Raw 679KB -> 295KB (-57%), gzip ~87KB -> ~36KB (-58%).

Keyword-aware: keys inside properties/$defs/definitions/patternProperties are field/model names and are preserved — every field declaration, type, required, and $ref is intact (0 dangling $ref, spec-valid). Wire-only: internal tool objects and tools/call structuredContent are unaffected.

Consumers that read advisory description/title text from the advertised outputSchema will no longer see it; structural validation and structured outputs are unchanged.

Meta

  • Tests: 2437 -> 2439 (regression guard: keyword-named fields survive + prose-stripped + 0-dangling, both emission paths).
  • MCP surface unchanged: 53 tools, 7 Resources, 3 Prompts (no contract change -> MCP Registry republish skipped).
View diff on GitHub

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About UPinar/contrastapi

Security intelligence API with 31 MCP tools for CVE/EPSS/KEV lookup, domain recon (DNS/WHOIS/SSL/subdomains/CT logs), IOC/threat intel, OSINT (email/phone/username), and code security scanning (secrets, injection). Free 100 req/hr.

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Related context

Earlier breaking changes

  • v1.33.11 `bulk_sigma_rule_lookup` now costs 1 credit per `rule_id`, changing from flat 1 credit/call.

Beta — feedback welcome: [email protected]