blog: devs guide to tool calling

[juliettech13]

Ticket

ENG-1230 Agent Course Content

Component/Service

What part of Helicone does this affect?

• Web (Frontend)
• Jawn (Backend)
• Worker (Proxy)
• Bifrost (Marketing)
• AI Gateway
• Packages
• Infrastructure/Docker
• Documentation

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation update
• Performance improvement
• Refactoring

Deployment Notes

• No special deployment steps required
• Database migrations need to run
• Environment variable changes required
• Coordination with other teams needed

Context

Why are you making this change?
Marketing

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Project	Deployment	Review	Updated (UTC)
helicone	Ready	Preview, Comment	Jan 14, 2026 5:27am
helicone-bifrost	Ready	Preview, Comment	Jan 14, 2026 5:27am
helicone-eu	Ready	Preview, Comment	Jan 14, 2026 5:27am

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[claude]

Claude finished @juliettech13's task —— View job

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PR Review Completed ✅

Score: 8/10 - Good to merge, with minor suggestions for improvement

Review Summary

This PR adds a well-structured blog post about tool calling workflows to the Bifrost marketing site. The content is technically accurate and valuable for the target developer audience.

Todo List:

• Read repository guidelines (CLAUDE.md)
• Review metadata.json structure and content
• Analyze blog content (src.mdx) for technical accuracy
• Check page.tsx modifications
• Verify image assets
• Provide final review score and recommendations

🟢 Strengths

1. Well-structured metadata: bifrost/app/blog/blogs/tools/metadata.json:1-11 - Clean JSON structure with all required fields
2. Technically accurate content: The tool calling concepts are correctly explained with proper TypeScript examples
3. Good integration: Proper addition to blog list at bifrost/app/blog/page.tsx:228-231
4. Strong call-to-action: Well-placed CTA component promoting the agent course
5. Comprehensive coverage: Covers both technical implementation and observability best practices

🟡 Minor Issues & Suggestions

Content Quality (bifrost/app/blog/blogs/tools/src.mdx)

1. Line 97: Simple placeholder implementation - consider showing a more realistic changelog generation example:

// Current
return `This is a changelog announcement about ${commits[0]}, considering this ${readme_excerpt} as context.`;

// Suggested improvement
return `
## What's New

${commits.map(commit => `- ${commit.message}`).join('\n')}

Based on ${readme_excerpt}, these changes improve...
`;

2. Line 18: Minor typo - "output different responses" could be "produce different responses" for clarity

3. Lines 22: Could benefit from a brief explanation of JSON schema for readers unfamiliar with the concept

Technical Implementation

1. Import at line 1: The CallToAction import is used correctly but verify the component exists and is properly exported
2. Links: Internal blog links (lines 7, 127) should be validated to ensure they exist
3. Date consistency: Metadata shows "January 13, 2026" which should be verified for accuracy

SEO & Marketing

1. Description length: "A practical dive into designing tools that your AI systems leverage reliably." could be expanded to 150-160 characters for better SEO
2. Badge text: "Frameworks & Tools" is appropriate for the content category

No Critical Issues Found

• ✅ No security vulnerabilities
• ✅ No breaking changes
• ✅ Follows repository conventions
• ✅ Proper file structure
• ✅ Image asset properly placed
• ✅ No malicious code detected

Recommendations

1. Consider expanding the changelog example implementation for better educational value
2. Verify all internal links point to existing blog posts
3. Add a brief explanation of JSON schema concepts for broader accessibility

This is a valuable addition to the blog that maintains high content quality and technical accuracy. The minor suggestions above are enhancements rather than blockers.