docs(go): add MCP security documentation and examples

[jackbatzner]

Description

Add comprehensive documentation for Go MCP security primitives, including API references, OWASP compliance mapping, usage guides, and integration examples. Updates the Go SDK README and changelog.

What's Included

• Go MCP API reference documentation
• OWASP MCP Security Cheat Sheet mapping (§1–§12, 11/12 covered)
• Usage examples and integration guides
• Updated SDK README with MCP section
• Changelog entries for the new MCP primitives
• Chinese (zh-CN) translation link fixes

Type of Change

• Documentation update

Package(s) Affected

• packages/agent-mesh/sdks/go (README, docs)
• docs/ (guides and references)

Checklist

• I have read the CONTRIBUTING guide
• My code follows the style guidelines of this project
• I have added MIT license headers to all new source files
• My changes generate no new warnings

Stacked PRs

This is PR 3 of 3 (Docs). Merge order:

1. feat(go): add MCP protocol support with full OWASP coverage #832 — Core MCP primitives (merge first)
2. feat(go): add standalone MCP governance package #833 — Standalone package wrapper (merge second)
3. This PR — Documentation and examples

Related Issues

Part of the multi-language MCP OWASP parity effort.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This pull request focuses on adding comprehensive documentation for Go MCP (Minimum Capability Principle) security primitives, including API references, OWASP compliance mapping, usage guides, and integration examples. While this PR is primarily documentation-focused, it touches on critical areas like OWASP compliance and security primitives, which are essential for the overall security posture of the toolkit.

---

Key Observations and Feedback

🔴 CRITICAL: OWASP Compliance Mapping

1. OWASP MCP Mapping Completeness:

   • The PR mentions that 11 out of 12 OWASP MCP cheat sheet sections are covered. However, it does not specify which section is missing or why it is excluded. This could lead to gaps in security understanding or implementation.
   • Action: Clearly document the missing section and provide a rationale for its exclusion. If it is a future enhancement, explicitly mention it in the roadmap.

2. MCP Security Examples:

   • The provided examples for Go MCP security primitives are helpful but lack explicit error handling for edge cases (e.g., invalid configurations, malformed inputs, or unexpected runtime errors).
   • Action: Add error handling examples to demonstrate how users can handle failures gracefully, especially for critical operations like signing, authentication, and rate limiting.

🔴 CRITICAL: Cryptographic Operations

3. Ed25519 Key Management:

   • The documentation mentions Ed25519-based credentials but does not provide details on secure key storage, rotation, or revocation.
   • Action: Include a section on best practices for managing Ed25519 keys, such as using hardware security modules (HSMs) or secure enclaves.

4. Credential Redaction:

   • The documentation mentions "credential redaction" as a feature but does not explain its implementation or limitations.
   • Action: Add a detailed explanation of how credential redaction is implemented and any potential risks or limitations (e.g., edge cases where sensitive data might still be exposed).

🔴 CRITICAL: Sandbox Escape Vectors

5. Sandbox Isolation:
   • The documentation states that the policy engine and the agents it governs run in the same Python process. This creates a potential attack vector for sandbox escapes.
   • Action: Highlight this limitation more prominently in the documentation and provide recommendations for mitigating this risk, such as running agents in isolated containers or VMs.

🟡 WARNING: Backward Compatibility

6. Breaking Changes in Go SDK:
   • The addition of new MCP primitives and a standalone Go MCP governance module could potentially introduce breaking changes for existing users of the Go SDK.
   • Action: Clearly document any breaking changes in the changelog and provide migration guides for existing users.

💡 SUGGESTION: Documentation Improvements

7. Code Examples:

   • The code examples for Go MCP primitives are useful but could benefit from additional comments explaining the purpose of each step.
   • Action: Add inline comments to the code examples to improve clarity for new users.

8. Threat Modeling:

   • While the documentation includes a link to the threat model, it would be helpful to include a summary of the key threats and mitigations related to MCP security primitives.
   • Action: Add a brief summary of the threat model in the OWASP MCP mapping document.

9. Chinese Translation:

   • The PR mentions fixes to Chinese translation links but does not provide details on what was fixed.
   • Action: Verify that all Chinese translation links are functional and point to the correct resources.

---

Final Recommendation

• Merge Readiness: The PR is well-structured and provides valuable documentation for Go MCP security primitives. However, the identified critical issues must be addressed before merging to ensure the security and completeness of the documentation.
• Follow-Up Actions: Address the critical issues and update the PR with the necessary changes. Additionally, consider the suggestions to further improve the documentation's clarity and usability.

Let me know if you need further clarification or assistance!

[github-actions]

🤖 AI Agent: security-scanner — Findings

This pull request primarily focuses on documentation updates, including the addition of Go MCP security documentation, OWASP compliance mapping, and integration examples. While the changes are documentation-focused, they still require a security review to ensure no inadvertent issues are introduced, especially in a critical security-focused repository like this.

Findings

1. Prompt Injection Defense Bypass

• Risk Level: 🔵 LOW
• Analysis: The documentation includes examples of how to use the Go SDK for policy enforcement. While these examples are illustrative, they do not directly implement or test prompt injection defenses. However, the documentation should emphasize the importance of sanitizing inputs when defining policies or evaluating actions.
• Recommendation: Add a note in the documentation examples to highlight the need for input sanitization and validation to prevent injection attacks.

2. Policy Engine Circumvention

• Risk Level: 🔵 LOW
• Analysis: The documentation updates do not modify the policy engine itself but describe its usage. There is no evidence of policy circumvention introduced in the examples. However, the examples should explicitly demonstrate fail-closed behavior when policies are not defined or when invalid actions are attempted.
• Recommendation: Update the examples to include scenarios where actions are denied due to missing or invalid policies, reinforcing the fail-closed principle.

3. Trust Chain Weaknesses

• Risk Level: 🔵 LOW
• Analysis: The documentation mentions SPIFFE/SVID and Ed25519-based credentials but does not delve into their implementation. There are no changes to the trust chain mechanisms in this PR.
• Recommendation: Ensure that future documentation updates include explicit instructions on verifying trust chains and handling certificate validation errors.

4. Credential Exposure

• Risk Level: 🔵 LOW
• Analysis: There is no evidence of sensitive information being exposed in the documentation or examples. However, the examples should include a disclaimer about not hardcoding credentials or sensitive information in code.
• Recommendation: Add a disclaimer in the documentation examples advising against hardcoding sensitive information.

5. Sandbox Escape

• Risk Level: 🔵 LOW
• Analysis: The documentation does not introduce or modify sandboxing mechanisms. The examples provided are high-level and do not interact with sandboxing features directly.
• Recommendation: None for this PR, but future documentation updates should include examples of how to configure and use sandboxing features securely.

6. Deserialization Attacks

• Risk Level: 🔵 LOW
• Analysis: The documentation does not involve deserialization or serialization processes. No risks identified.
• Recommendation: None.

7. Race Conditions

• Risk Level: 🔵 LOW
• Analysis: The documentation does not introduce or modify concurrent operations or policy checks. No risks identified.
• Recommendation: None.

8. Supply Chain

• Risk Level: 🟡 MEDIUM
• Analysis: The documentation references several dependencies (e.g., agentmesh, agent-os-kernel, etc.) but does not explicitly address supply chain security. While this is not a direct issue with the documentation, it is critical to ensure that all referenced dependencies are secure and free from typosquatting or dependency confusion risks.
• Recommendation: Include a section in the documentation on verifying the integrity of dependencies, such as using checksums or SBOMs (Software Bill of Materials). Additionally, ensure that dependency management tools like Dependabot are actively monitoring the repository.

---

Summary of Recommendations

1. Add notes in the documentation examples about input sanitization and validation to prevent injection attacks.
2. Demonstrate fail-closed behavior in policy enforcement examples.
3. Include disclaimers against hardcoding sensitive information in code examples.
4. Add guidance on verifying the integrity of dependencies and using SBOMs.

Final Assessment

This PR does not introduce any critical security vulnerabilities. However, minor improvements to the documentation can enhance its security posture and provide better guidance to users. The overall risk level for this PR is LOW.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This pull request focuses on adding comprehensive documentation for the Go MCP security primitives, including API references, OWASP compliance mapping, usage guides, and integration examples. While this PR primarily involves documentation updates, it indirectly impacts the security and usability of the Go SDK by providing critical guidance for developers. Below are the findings and recommendations:

---

🔴 CRITICAL

1. Incomplete OWASP MCP Security Cheat Sheet Coverage

   • The PR mentions that 11 out of 12 sections of the OWASP MCP Security Cheat Sheet are covered. However, it does not specify which section is missing or why it is not covered. This could lead to a false sense of security for developers relying on the documentation.
   • Action: Clearly document the missing section and provide a rationale for its exclusion. If possible, include a roadmap or timeline for addressing this gap.

2. Potential Misuse of Cryptographic Primitives

   • The documentation mentions the use of Ed25519 for zero-trust agent identity. However, there is no detailed explanation of how keys are generated, stored, or rotated. Improper handling of cryptographic keys can lead to severe security vulnerabilities.
   • Action: Add a section to the documentation that explicitly outlines best practices for key management, including secure storage, rotation, and revocation.

3. Lack of Explicit Guidance on Secure Configuration

   • The documentation provides examples of how to use the Go MCP SDK but does not emphasize secure defaults or configurations. For instance, it is unclear if the provided examples enforce secure communication channels (e.g., TLS) or if developers need to configure this manually.
   • Action: Update the examples to include secure configurations by default and explicitly warn against insecure practices.

---

🟡 WARNING

1. Potential Breaking Changes in Related PRs

   • This PR is part of a stacked series, with dependencies on #832 and #833. If those PRs introduce breaking changes, this documentation may become outdated or incorrect.
   • Action: Ensure that all changes in #832 and #833 are backward-compatible or clearly document any breaking changes in the changelog.

2. Backward Compatibility of Go SDK

   • The addition of new MCP primitives to the Go SDK could potentially introduce breaking changes if existing APIs are modified or deprecated.
   • Action: Verify that the new MCP primitives are additive and do not alter the behavior of existing APIs. If there are breaking changes, they should be clearly documented in the changelog.

---

💡 SUGGESTIONS

1. Thread Safety in Go SDK

   • The documentation does not mention whether the Go SDK is thread-safe, which is critical for concurrent agent execution.
   • Action: Add a section to the Go SDK documentation explicitly stating whether the SDK is thread-safe. If it is not, provide guidance on how developers can ensure thread safety in their applications.

2. Sandbox Escape Prevention

   • While the documentation mentions execution sandboxing, it does not provide details on how to configure or verify the sandbox to prevent escape vectors.
   • Action: Include a dedicated section on sandbox configuration and best practices to mitigate escape risks.

3. Type Safety and Validation

   • The documentation does not specify whether the Go SDK enforces type safety or validates inputs (e.g., policy rules, agent IDs).
   • Action: Add a note in the documentation about input validation and type safety, especially for critical functions like ExecuteWithGovernance.

4. Chinese Translation Updates

   • The PR includes fixes for Chinese translation links but does not provide a summary of what was fixed.
   • Action: Include a brief description of the specific changes made to the Chinese translation links in the PR description.

5. Examples for Advanced Use Cases

   • The provided examples focus on basic usage but do not cover advanced scenarios like custom policy engines, integration with external identity providers, or handling complex policy rules.
   • Action: Add advanced examples to the documentation to cover these scenarios.

6. Performance Metrics for Go SDK

   • The documentation mentions performance metrics for Python but does not provide similar metrics for the Go SDK.
   • Action: Include performance benchmarks for the Go SDK to help developers understand its efficiency.

---

Additional Notes

• The updated .cspell.json file includes a comprehensive list of terms, which is a good practice for maintaining consistency in documentation. However, consider reviewing the list periodically to remove obsolete terms.
• The changelog updates are clear and provide a good summary of the changes. Ensure that future updates maintain this level of detail.

---

Conclusion

This PR makes significant improvements to the documentation of the Go MCP security primitives, which is crucial for developer adoption and secure usage. However, there are critical gaps in OWASP compliance coverage, cryptographic key management, and secure configuration guidance that need to be addressed. Additionally, potential breaking changes in related PRs should be carefully reviewed to ensure backward compatibility.

[github-actions]

🤖 AI Agent: code-reviewer

Feedback on PR: docs(go): add MCP security documentation and examples

---

🔴 CRITICAL

1. OWASP Compliance Gap:

   • The PR mentions that the OWASP MCP Security Cheat Sheet mapping covers 11 out of 12 sections. However, it does not specify which section is missing or why it is not covered. This is a critical issue as incomplete OWASP compliance could lead to security vulnerabilities.
   • Action: Clearly document the missing section and provide a justification or a roadmap for addressing it.

2. Sensitive Information in Documentation:

   • The .cspell.json file includes terms like accountkey, sharedaccesskey, and apikey. These terms could inadvertently lead to sensitive information being exposed if not handled properly.
   • Action: Ensure that these terms are not accidentally included in public documentation or logs. Consider adding a note in the documentation about securely handling sensitive keys.

3. Credential Handling:

   • The documentation includes examples with placeholder credentials like accountkey and sharedaccesskey. While these are placeholders, they might encourage insecure practices if users copy-paste them without understanding the need for secure storage.
   • Action: Add a clear warning in the documentation to never hardcode sensitive credentials and recommend using secure storage solutions (e.g., environment variables, secret managers).

---

🟡 WARNING

1. Potential Breaking Changes:
   • The changelog mentions the addition of "Go MCP Security Primitives" and a "Standalone Go MCP Governance Module." While this PR is documentation-focused, these changes could introduce breaking changes in the Go SDK if not backward-compatible.
   • Action: Verify that the new Go MCP primitives and governance module maintain backward compatibility. If not, clearly document the breaking changes and provide migration guidance.

---

💡 SUGGESTIONS

1. OWASP Compliance Mapping:

   • While the PR mentions OWASP MCP Security Cheat Sheet mapping, it would be helpful to include a summary table or visual representation in the documentation to highlight which sections are covered and how.

2. Thread Safety in Go SDK:

   • The Go SDK examples in the documentation do not address thread safety. Given that concurrent agent execution is a focus area, it would be beneficial to include examples or notes on how to safely use the SDK in multi-threaded environments.
   • Action: Add a section in the Go SDK documentation about thread safety and best practices for concurrent usage.

3. Sandbox Escape Prevention:

   • The documentation mentions execution sandboxing but does not provide details on how the Go SDK enforces sandbox boundaries or prevents sandbox escapes.
   • Action: Include a dedicated section in the documentation explaining the sandboxing mechanisms and how they mitigate escape vectors.

4. Type Safety in Go SDK:

   • The Go SDK examples do not demonstrate type safety explicitly. Since type safety is a focus area, consider adding examples that showcase how the SDK ensures type safety, especially when dealing with policy rules and agent actions.
   • Action: Add examples demonstrating type-safe usage of the Go SDK.

5. Chinese Translation Updates:

   • The PR mentions fixing Chinese translation links, but it is unclear if the content itself was reviewed for accuracy and completeness.
   • Action: Confirm that the Chinese translation has been reviewed for accuracy and is up-to-date with the English documentation.

6. Documentation Structure:

   • The documentation is comprehensive but could benefit from a more modular structure. For example, separating API references, usage guides, and integration examples into distinct sections or files would improve readability.
   • Action: Consider restructuring the documentation to make it easier to navigate and maintain.

7. Code Examples:

   • The code examples in the documentation are helpful but could benefit from additional comments explaining the purpose of each line, especially for less experienced developers.
   • Action: Add comments to the code examples to make them more beginner-friendly.

8. Testing and Validation:

   • The PR does not mention any tests or validation for the Go SDK's new MCP security primitives.
   • Action: Ensure that the Go SDK's new features are thoroughly tested, especially for edge cases that could lead to security bypasses or incorrect policy enforcement.

---

Summary

This PR makes significant progress in documenting the Go MCP security primitives and their alignment with OWASP compliance. However, there are critical gaps in OWASP compliance, potential risks related to sensitive information, and a lack of clarity around thread safety, sandboxing, and type safety in the Go SDK. Addressing these issues will improve the security and usability of the documentation and the SDK.

[github-actions]

🤖 AI Agent: code-reviewer

Review of Pull Request: docs(go): add MCP security documentation and examples

---

General Feedback

This PR introduces comprehensive documentation for the Go MCP security primitives, including API references, OWASP compliance mapping, usage guides, and integration examples. It also updates the Go SDK README and changelog, along with fixing Chinese translation links. The documentation is detailed and well-structured, which is commendable.

However, there are several areas that require attention to ensure the documentation is accurate, secure, and aligned with the project's goals.

---

🔴 CRITICAL

1. OWASP Compliance Mapping (Missing ASI-12):

   • The PR mentions that 11 out of 12 OWASP MCP Security Cheat Sheet items are covered. However, it does not specify which item is missing or why it is not covered.
   • Action: Clearly document the missing ASI (§12) and provide a rationale for its exclusion. If it is a known limitation, explicitly state the mitigation strategies or future plans to address it.

2. Credential Handling in Examples:

   • The Go example includes hardcoded credentials ("my-agent") in the NewClient function.
   • Action: Replace hardcoded credentials with environment variable usage or configuration file references. Add a note in the documentation to discourage hardcoding sensitive information.

3. SPIFFE/SVID Documentation:

   • The documentation mentions SPIFFE/SVID support but does not provide concrete examples or details on how to configure and use it.
   • Action: Add a dedicated section or example for SPIFFE/SVID integration, including how to generate, validate, and rotate SVIDs securely.

4. Sandbox Escape Vectors:

   • The documentation does not address potential sandbox escape vectors in the Go SDK, especially for tools like ExecuteWithGovernance.
   • Action: Add a section explicitly discussing sandboxing mechanisms, potential escape risks, and how the Go SDK mitigates them.

---

🟡 WARNING

1. Backward Compatibility:

   • The changelog mentions the addition of "Go MCP Security Primitives" and a "Standalone Go MCP Governance Module." However, it is unclear if these changes introduce any breaking changes to the existing Go SDK.
   • Action: Confirm and document whether these additions are backward-compatible. If not, clearly highlight the breaking changes and provide migration guidance.

2. Chinese Translation Link Fixes:

   • While the PR mentions fixing Chinese translation links, the diff does not clearly show the changes. This could lead to confusion or missed issues.
   • Action: Verify that all translation links are correctly updated and functional.

---

💡 SUGGESTIONS

1. Type Safety in Go Examples:

   • The Go examples could benefit from additional type annotations and error handling to improve clarity and robustness.
   • Action: Update the Go examples to include proper error handling and type assertions. For example:

     client, err := agentmesh.NewClient("my-agent",
         agentmesh.WithPolicyRules([]agentmesh.PolicyRule{
             {Action: "data.read", Effect: agentmesh.Allow},
             {Action: "*", Effect: agentmesh.Deny},
         }),
     )
     if err != nil {
         log.Fatalf("Failed to create client: %v", err)
     }
     result := client.ExecuteWithGovernance("data.read", nil)
     if result.Allowed {
         fmt.Println("Action allowed")
     } else {
         fmt.Println("Action denied")
     }

2. OWASP Mapping Table:

   • The OWASP mapping table in the documentation is highly useful but could benefit from additional details, such as specific examples or links to relevant code sections.
   • Action: Enhance the OWASP mapping table with links to implementation details or examples for each ASI category.

3. Thread Safety in Go SDK:

   • The documentation does not address thread safety in the Go SDK, especially for concurrent agent execution.
   • Action: Add a section discussing thread safety guarantees and best practices for using the Go SDK in concurrent environments.

4. Pydantic Model Validation:

   • While this PR focuses on Go, it would be beneficial to cross-reference the Python documentation for Pydantic model validation to ensure consistency across languages.
   • Action: Add a note in the Go documentation about the equivalent validation mechanisms in Python for users working in multi-language environments.

5. Code Examples for OWASP Compliance:

   • The documentation mentions OWASP compliance but does not include code examples demonstrating how to implement specific OWASP controls.
   • Action: Add code snippets or links to examples that show how to implement OWASP controls using the Go SDK.

---

Summary of Actions

🔴 CRITICAL

• Document the missing OWASP ASI (§12) and provide mitigation strategies.
• Remove hardcoded credentials from examples and recommend secure practices.
• Add SPIFFE/SVID integration examples and configuration details.
• Address sandbox escape vectors in the documentation.

🟡 WARNING

• Confirm and document backward compatibility or provide migration guidance.
• Verify and ensure the correctness of Chinese translation link fixes.

💡 SUGGESTIONS

• Improve type safety and error handling in Go examples.
• Enhance the OWASP mapping table with links to implementation details.
• Add a section on thread safety in the Go SDK.
• Cross-reference Pydantic model validation in Python documentation.
• Include code examples for implementing OWASP controls in Go.

---

This PR is a valuable addition to the project, but addressing the critical issues and warnings is essential before merging. The suggestions can further enhance the quality and usability of the documentation.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This pull request focuses on enhancing the documentation for the Go MCP security primitives within the agent-governance-toolkit. The changes include API references, OWASP compliance mappings, usage guides, and integration examples. Overall, the documentation improvements are beneficial for users and developers, providing clarity and guidance on the new features.

Feedback

🔴 CRITICAL Issues

• Security Documentation Completeness: Ensure that the documentation covers all security aspects of the Go MCP primitives, especially regarding cryptographic operations and credential handling. If any security features are not documented, it could lead to misuse or vulnerabilities.

🟡 WARNING Issues

• Backward Compatibility: While this PR primarily focuses on documentation, ensure that the new Go MCP primitives do not introduce breaking changes to existing users. If there are any changes in the API or behavior of existing functions, they should be clearly documented in the changelog and migration guides.

💡 SUGGESTION Improvements

1. Detailed Examples: The usage examples provided are a good start, but consider adding more complex scenarios that demonstrate the integration of multiple features. For instance, showing how to handle errors or exceptions when using the Go SDK could be beneficial.

2. OWASP Mapping Clarity: The OWASP MCP Security Cheat Sheet mapping is a valuable addition. However, it would be helpful to include specific examples or case studies that illustrate how the Go MCP primitives address each OWASP risk. This could enhance understanding and practical application.

3. Translation Consistency: Ensure that the Chinese translation is consistent with the English documentation. Any discrepancies could lead to misunderstandings for non-English speaking users.

4. Versioning Information: Consider adding versioning information for the Go MCP primitives in the documentation. This can help users understand which version of the SDK they are using and any relevant changes or updates.

5. Integration Testing: If not already in place, consider implementing integration tests for the documentation examples to ensure they work as intended. This can help catch any discrepancies between the documentation and the actual implementation.

6. User Feedback Mechanism: Implement a mechanism for users to provide feedback on the documentation. This could be through GitHub issues or a dedicated feedback form, allowing continuous improvement based on user experiences.

Conclusion

The documentation updates are a positive step towards improving the usability and security understanding of the Go MCP security primitives. Addressing the critical and warning issues, along with the suggested improvements, will further enhance the quality and effectiveness of the documentation.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This pull request focuses on adding comprehensive documentation for Go MCP (Managed Control Plane) security primitives, including API references, OWASP compliance mapping, usage guides, and integration examples. While this PR is documentation-focused, it indirectly impacts the usability and security of the Go SDK by providing guidance on secure usage patterns.

Below are the detailed review findings:

---

🔴 CRITICAL

1. OWASP Compliance Gap in Documentation

   • The PR mentions that 11 out of 12 OWASP MCP Security Cheat Sheet sections are covered. However, the missing section is not explicitly stated in the documentation. This creates ambiguity and could lead to a false sense of security for users.
   • Action: Clearly document which OWASP section is not covered and why. Provide guidance on how users can mitigate risks related to the missing section.

2. Potential Misuse of Cryptographic Primitives

   • The documentation mentions Ed25519-based credentials and SPIFFE/SVID for zero-trust identity. However, there is no explicit mention of how private keys are securely stored and managed in the Go SDK.
   • Action: Add a section in the documentation explicitly addressing secure storage and management of private keys, including recommendations for using hardware security modules (HSMs) or secure enclaves.

3. Sandbox Escape Risks

   • The documentation highlights the use of a "4-layer permission ring" and "sandboxing" but does not provide sufficient detail on the implementation or limitations of these mechanisms. This could lead to developers assuming a higher level of security than what is actually provided.
   • Action: Include a detailed explanation of the sandboxing mechanism, its limitations, and any potential attack vectors. Clearly state that the sandbox operates at the application layer and does not provide OS-level isolation.

---

🟡 WARNING

1. Breaking Changes in Documentation

   • The documentation introduces new Go MCP security primitives and a standalone Go MCP governance module. While these are valuable additions, they may introduce breaking changes for users upgrading from earlier versions of the Go SDK.
   • Action: Add a clear "Migration Guide" section in the documentation to help users transition to the new MCP security primitives and standalone module.

2. Backward Compatibility

   • The changelog mentions "fail-closed MCP signing" and other new security features. If these features are enabled by default, they could potentially break existing integrations.
   • Action: Ensure that these features are opt-in or provide clear instructions for users to enable/disable them as needed.

---

💡 SUGGESTIONS

1. Expand OWASP Mapping

   • While the documentation provides an OWASP compliance mapping, it would be helpful to include a table or matrix that explicitly maps each Go MCP security primitive to the corresponding OWASP Agentic Top 10 risk.
   • Action: Add a detailed OWASP compliance matrix to the documentation for clarity and transparency.

2. Add Security Best Practices

   • The documentation could benefit from a dedicated section on security best practices for using the Go MCP SDK, such as:
     • Regularly rotating keys and credentials.
     • Enabling logging and monitoring for suspicious activities.
     • Using secure defaults for all configurations.
   • Action: Add a "Security Best Practices" section to the documentation.

3. Chinese Translation Updates

   • The PR mentions fixing Chinese translation links, but it would be helpful to verify that the translations themselves are up-to-date with the latest documentation changes.
   • Action: Confirm that the Chinese translations reflect the new content added in this PR.

4. Add Examples for Advanced Use Cases

   • The provided examples are useful but focus primarily on basic use cases. Advanced examples, such as integrating with third-party tools or implementing custom policies, would be beneficial.
   • Action: Add advanced usage examples to the documentation.

5. Clarify Performance Metrics

   • The performance metrics in the documentation are impressive but lack context. For example, what hardware or environment were these benchmarks run on?
   • Action: Include details about the testing environment and methodology used to obtain the performance metrics.

---

Final Recommendation

• Merge Readiness: This PR can be merged after addressing the critical issues and warnings.
• Follow-Up: Create a separate issue or PR to address the suggestions for improving the documentation further.

By addressing the above points, the documentation will not only provide better guidance but also ensure that users are aware of the security implications and limitations of the Go MCP SDK.

[jackbatzner]

CI Status Summary ✅

All CI checks pass except:

• Maintainer approval gate — awaiting review

Go MCP docs + net/http integration example with tests. Slimmed to 9 files.

⚠️ Depends on #833 (Package) merging first. Merge order: #832 → #833 → #834.

[imran-siddique]

Reviewed docs - content looks good. This PR is blocked on its dependency feature PR being merged first. Will merge this once the base PR lands.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This pull request focuses on enhancing the documentation for the Go MCP security primitives within the microsoft/agent-governance-toolkit repository. The updates include API references, OWASP compliance mappings, usage guides, and integration examples. Below are the actionable feedback points based on the review criteria.

Actionable Feedback

🔴 CRITICAL Issues

• Security Documentation Completeness: Ensure that the documentation includes detailed security considerations for the Go MCP primitives, especially regarding cryptographic operations and credential handling. It should explicitly mention how to securely manage keys and sensitive data, as well as any potential vulnerabilities associated with the new features.

🟡 WARNING Issues

• Backward Compatibility: The addition of new Go MCP security primitives may introduce breaking changes if existing integrations rely on previous versions of the SDK. Ensure that the documentation clearly states any changes that could affect backward compatibility and provide migration guidance if necessary.

💡 SUGGESTIONS

• Enhanced Examples: While the examples provided are useful, consider adding more comprehensive scenarios that demonstrate the security features in action, such as:

  • A complete flow of signing and verifying a session.
  • Handling of rate limiting and session management in a multi-threaded environment.

• OWASP Mapping Clarity: The OWASP compliance mapping should include specific examples or case studies that illustrate how each security control is implemented in the Go MCP primitives. This will help users understand the practical implications of the compliance measures.

• Thread Safety Documentation: If the Go MCP primitives are intended to be used in concurrent environments, it would be beneficial to document any thread safety guarantees or considerations. This is crucial for users who may deploy these primitives in multi-threaded applications.

• Type Safety and Validation: Ensure that the documentation emphasizes the importance of type safety and validation when using the Pydantic models. Providing examples of how to validate inputs and handle errors gracefully would enhance the usability of the library.

• Integration Guides: The integration guides should include common pitfalls and troubleshooting tips for users who may encounter issues when integrating the Go MCP security primitives into their applications.

• Changelog Clarity: In the changelog, consider categorizing changes more explicitly (e.g., breaking changes, new features, bug fixes) to improve readability and help users quickly identify relevant updates.

Conclusion

Overall, this pull request significantly enhances the documentation for the Go MCP security primitives. Addressing the critical security documentation completeness and warning regarding backward compatibility will ensure that users can effectively and securely utilize the new features. Implementing the suggestions will further improve the usability and clarity of the documentation.

[github-actions]

🤖 AI Agent: code-reviewer

Review Summary

This PR primarily focuses on adding documentation for the Go MCP (Managed Control Plane) security primitives, including API references, OWASP compliance mapping, usage guides, and integration examples. While the changes are documentation-focused, they touch on critical areas such as OWASP compliance and security primitives, which are core to the project. Below is a detailed review of the PR:

---

🔴 CRITICAL

1. OWASP Compliance Gap

   • The PR mentions that 11 out of 12 OWASP MCP Security Cheat Sheet sections are covered. However, it does not specify which section is missing or why it is not covered. This is a critical gap because incomplete OWASP compliance could lead to potential vulnerabilities.
     • Action: Clearly document the missing OWASP section, the rationale for its exclusion, and any planned mitigation strategies.

2. Incomplete Documentation on Fail-Closed Behavior

   • The documentation mentions "fail-closed MCP signing" but does not provide sufficient details or examples of how this is implemented or enforced. Fail-closed behavior is critical for security, especially in governance systems.
     • Action: Add a dedicated section in the documentation explaining how fail-closed behavior is implemented, tested, and verified.

3. Credential Handling in Go SDK

   • The documentation does not provide details on how credentials (e.g., SPIFFE/SVID) are securely handled in the Go SDK. This is a critical area for trust and identity.
     • Action: Include a section in the Go SDK documentation explaining how credentials are managed, stored, and transmitted securely.

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🟡 WARNING

1. Backward Compatibility

   • The changelog mentions the addition of new MCP security primitives and a standalone Go MCP governance module. While these are new additions, it is unclear if they introduce breaking changes for existing Go SDK users.
     • Action: Explicitly state whether these changes are backward-compatible. If not, provide migration guidance for existing users.

2. Chinese Translation Link Fixes

   • The PR mentions fixing Chinese translation links but does not provide details on what was fixed. If these links were broken in previous versions, it could impact users relying on the Chinese documentation.
     • Action: Verify that all translation links are now functional and document the fixes in the PR description.

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💡 SUGGESTIONS

1. Expand OWASP Mapping

   • While the OWASP mapping is a strong addition, it would be helpful to include specific examples or code snippets demonstrating how each OWASP Agentic Top 10 risk is mitigated in the Go SDK.
     • Action: Add a table or section in the documentation with examples for each OWASP risk.

2. Thread Safety in Go SDK

   • The documentation does not address thread safety in the Go SDK, which is critical for concurrent agent execution.
     • Action: Add a section discussing thread safety guarantees, especially for shared resources or stateful operations.

3. Sandbox Escape Prevention

   • The documentation mentions sandboxing but does not provide details on how the Go SDK prevents sandbox escapes.
     • Action: Include a section explaining the sandboxing mechanisms and how they are tested.

4. Type Safety and Validation

   • The documentation does not mention whether the Go SDK uses type-safe constructs or validates inputs to prevent issues like injection attacks.
     • Action: Add details on type safety and input validation mechanisms in the Go SDK.

5. Examples for Common Use Cases

   • While the documentation includes examples, it would be helpful to add more real-world use cases, such as integrating the Go SDK with popular frameworks or tools.
     • Action: Add examples for integrating the Go SDK with frameworks like LangChain or OpenAI Agents.

6. Performance Benchmarks

   • The documentation mentions performance benchmarks for the Python SDK but does not provide similar data for the Go SDK.
     • Action: Include performance benchmarks for the Go SDK to help users understand its efficiency.

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Final Assessment

• The PR is a significant improvement in terms of documentation and compliance mapping. However, there are critical gaps in OWASP compliance, fail-closed behavior, and credential handling that need to be addressed before merging.
• Additionally, backward compatibility and thread safety should be explicitly clarified to avoid potential issues for existing users.
• The suggestions aim to enhance the documentation's clarity and usefulness for developers.

Please address the critical issues and warnings before merging. The suggestions can be implemented in this or a follow-up PR.

[github-actions]

🤖 AI Agent: code-reviewer

Feedback for PR: docs(go): add MCP security documentation and examples

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🔴 CRITICAL

1. OWASP Compliance Mapping (11/12 Coverage):

   • While the PR mentions OWASP MCP Security Cheat Sheet mapping, it explicitly states that only 11/12 sections are covered. This leaves a gap in compliance. Missing coverage could lead to security vulnerabilities if the uncovered section addresses critical risks. Ensure that the missing section is either explicitly documented as "not applicable" or provide a roadmap for its implementation.

2. MCP Security Examples:

   • The Go SDK examples include ExecuteWithGovernance calls but lack detailed error handling or fail-closed mechanisms. This could lead to scenarios where policy evaluation failures result in unintended actions. Ensure that all examples demonstrate robust error handling and fail-closed behavior.

3. Credential Handling:

   • The documentation does not clarify how sensitive credentials (e.g., Ed25519 keys for SPIFFE/SVID) are stored, managed, or rotated in the Go SDK. Improper credential handling could lead to unauthorized access or impersonation attacks. Add explicit guidance on secure credential management.

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🟡 WARNING

1. Backward Compatibility:

   • The changelog mentions new Go MCP primitives and a standalone governance module. While this is a documentation PR, ensure that the changes in the preceding PRs (#832, #833) maintain backward compatibility with existing Go SDK integrations. Any breaking changes should be clearly documented.

2. Chinese Translation Link Fixes:

   • The PR includes fixes for Chinese translation links. Ensure that these changes do not inadvertently break other localized documentation or introduce inconsistencies.

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💡 SUGGESTION

1. OWASP Mapping Documentation:

   • While the PR includes OWASP compliance mapping, consider adding a table or visual summary in the documentation to make it easier for users to understand which sections are covered and how.

2. Sandboxing and Execution Isolation:

   • The documentation should emphasize the limitations of the Go SDK's sandboxing capabilities. For example, clarify that the SDK operates at the application layer and does not provide OS-level isolation. This will help users understand the security boundaries.

3. Concurrency and Thread Safety:

   • The Go SDK documentation should explicitly address whether the MCP primitives are thread-safe. If not, provide guidance on how users can safely use the SDK in concurrent environments.

4. Type Safety:

   • Ensure that all examples in the documentation use strongly typed parameters and return values. This will help users avoid runtime errors and improve code quality.

5. Chinese Documentation Enhancements:

   • While the PR fixes translation links, consider reviewing the Chinese documentation for completeness and accuracy, especially for technical terms like "sandboxing" and "zero trust."

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Summary

This PR provides valuable documentation and examples for the Go MCP security primitives. However, there are critical gaps in OWASP compliance, error handling, and credential management that need to be addressed. Additionally, backward compatibility and thread safety should be verified in the preceding PRs. Addressing these issues will ensure a robust and secure implementation.

[imran-siddique]

Closing this PR — it depends on #832 and #833 (both now closed) as prerequisites. With the MCP architecture consolidation, Go documentation will follow the new hybrid package approach.

Thank you for the thorough Go docs, @jackbatzner — the OWASP Cheat Sheet mapping (11/12 sections) is excellent work we'll build on.