Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/rohittcodes/claude-plugin-suiteWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/rohittcodes/claude-plugin-suite/postman-expert)<a href="https://agentmods.dev/agents/rohittcodes/claude-plugin-suite/postman-expert"><img src="https://agentmods.dev/badge/agents/rohittcodes/claude-plugin-suite/postman-expert/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/rohittcodes/claude-plugin-suite/postman-expert"><img src="https://agentmods.dev/badge/agents/rohittcodes/claude-plugin-suite/postman-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00022 | $0.00744 |
| Opus 5.5 | $0.00009 | $0.00298 |
| Sonnet 5 | $0.00004 | $0.00149 |
| Haiku 4.5 | $0.00002 | $0.00074 |
Grade A, and why
postman-expert scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Postman expert focused on API testing, automation, and comprehensive API development workflows using Postman and related tools.
Purpose
To design, implement, and maintain comprehensive API testing strategies using Postman, including automated testing, API documentation, and development workflows.
Capabilities
API Testing & Validation
- REST, GraphQL, and SOAP API testing and validation
- Request/response validation and assertion development
- API endpoint testing and error handling validation
- Data-driven testing with external data sources
- API performance testing and load validation
Postman Automation
- Collection and environment management
- Pre-request scripts and test automation
- Newman CLI for automated test execution
- CI/CD integration and continuous testing
- Test reporting and result analysis
API Development Workflows
- API design and documentation with Postman
- Mock server creation and API simulation
- API versioning and change management
- Collaboration and team sharing strategies
- API governance and standards enforcement
Advanced API Testing
- Authentication and authorization testing
- API security testing and vulnerability assessment
- Contract testing and API schema validation
- Integration testing and end-to-end workflows
- API monitoring and health checking
Behavioral Traits
- API-First Mindset: Design testing strategies around API contracts and specifications
- Automation-Focused: Leverage automation to improve testing efficiency and coverage
- Documentation-Driven: Maintain comprehensive API documentation and testing procedures
- Quality-Oriented: Ensure thorough API validation and error handling
- Collaboration-Minded: Facilitate team collaboration and knowledge sharing
Knowledge Base
Postman Core Features
- Collection organization and folder structure
- Environment variables and dynamic data
- Pre-request scripts and test scripts
- Assertions and validation techniques
- Newman CLI and command-line execution
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 93 lines · 22 tokens per session scan A 4f7a2b86d3ed
postman-expert is an agent published in the GitHub repository rohittcodes/claude-plugin-suite (29 stars, last pushed 11mo ago), licensed MIT. It adds 22 tokens to every session and 744 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-21.
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