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Add Architecture Diagram to README#13

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Nov 18, 2025
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Add Architecture Diagram to README#13
arec1b0 merged 1 commit into
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docs-improve-documentation

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@google-labs-jules

@google-labs-jules google-labs-jules Bot commented Nov 18, 2025 •
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This submission enhances the repository's documentation by adding a Mermaid diagram to the "System Architecture" section of the README.md file. The diagram visually illustrates the relationships and data flows between the PeoCoin, Staking, DCS, Governance, and Conversion smart contracts, making the project's architecture easier to understand at a glance.

PR created automatically by Jules for task 9888801203162304761 started by @arec1b0

PR Type

Documentation

Description

  • Adds Mermaid diagram to README System Architecture section

  • Visualizes relationships between five smart contracts

  • Shows user interactions and off-chain service integration

  • Improves developer onboarding with clear architecture overview

Diagram Walkthrough

flowchart LR
  README["README.md"]
  ARCH["System Architecture Section"]
  DIAGRAM["Mermaid Diagram"]
  CONTRACTS["Smart Contracts Visualization"]
  
  README --> ARCH
  ARCH --> DIAGRAM
  DIAGRAM --> CONTRACTS
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File Walkthrough
Relevant files
Documentation
README.md
Add architecture diagram to System Architecture section   

README.md

  • Added comprehensive Mermaid diagram to System Architecture section
  • Diagram shows user interactions with PeoCoin, Staking, DCS,
    Governance, and Conversion contracts
  • Illustrates data flows between contracts and off-chain backend service
  • Provides visual representation of contract relationships and
    dependencies
 +35/-0   

@google-labs-jules
docs: add Mermaid diagram to README
5346214 
Add a Mermaid diagram to the "System Architecture" section of the README.md to visually represent the interactions between the smart contracts. This diagram provides a clear and concise overview of the system's structure for new developers.
@google-labs-jules

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@arec1b0
arec1b0 marked this pull request as ready for review November 18, 2025 11:51
@arec1b0
arec1b0 merged commit b434257 into main Nov 18, 2025
0 of 2 checks passed
@qodo-code-review

qodo-code-review Bot commented Nov 18, 2025

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PR Compliance Guide 🔍

Below is a summary of compliance checks for this PR:

Security Compliance
🟢
No security concerns identified No security vulnerabilities detected by AI analysis. Human verification advised for critical code.
Ticket Compliance
⚪
🎫 No ticket provided
  • Create ticket/issue
Codebase Duplication Compliance
⚪
Codebase context is not defined

Follow the guide to enable codebase context checks.

Custom Compliance
🟢
Generic: Meaningful Naming and Self-Documenting Code

Objective: Ensure all identifiers clearly express their purpose and intent, making code
self-documenting

Status: Passed

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Secure Error Handling

Objective: To prevent the leakage of sensitive system information through error messages while
providing sufficient detail for internal debugging.

Status: Passed

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Secure Logging Practices

Objective: To ensure logs are useful for debugging and auditing without exposing sensitive
information like PII, PHI, or cardholder data.

Status: Passed

Learn more about managing compliance generic rules or creating your own custom rules

⚪
Generic: Comprehensive Audit Trails

Objective: To create a detailed and reliable record of critical system actions for security analysis
and compliance.

Status:
Not Applicable: The PR only adds documentation (a Mermaid diagram) and introduces no executable code that
could implement or violate audit logging requirements.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Robust Error Handling and Edge Case Management

Objective: Ensure comprehensive error handling that provides meaningful context and graceful
degradation

Status:
Not Applicable: The changes are documentation-only and do not introduce runtime behavior where error
handling or edge-case logic would apply.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Security-First Input Validation and Data Handling

Objective: Ensure all data inputs are validated, sanitized, and handled securely to prevent
vulnerabilities

Status:
Not Applicable: No new input handling or data processing code was added; the diff only introduces a
diagram in documentation.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules
Compliance status legend 🟢 - Fully Compliant
🟡 - Partial Compliant
🔴 - Not Compliant
⚪ - Requires Further Human Verification
🏷️ - Compliance label

@qodo-code-review

qodo-code-review Bot commented Nov 18, 2025

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PR Compliance Guide 🔍

Below is a summary of compliance checks for this PR:

Security Compliance
🟢
No security concerns identified No security vulnerabilities detected by AI analysis. Human verification advised for critical code.
Ticket Compliance
⚪
🎫 No ticket provided
  • Create ticket/issue
Codebase Duplication Compliance
⚪
Codebase context is not defined

Follow the guide to enable codebase context checks.

Custom Compliance
⚪
Generic: Comprehensive Audit Trails

Objective: To create a detailed and reliable record of critical system actions for security analysis
and compliance.

Status:
Not applicable: This PR only adds documentation (a Mermaid architecture diagram) and does not introduce or
modify executable code where audit logging would apply.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Meaningful Naming and Self-Documenting Code

Objective: Ensure all identifiers clearly express their purpose and intent, making code
self-documenting

Status:
Documentation only: The changes are limited to README documentation and do not add or rename code identifiers
subject to this check.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Robust Error Handling and Edge Case Management

Objective: Ensure comprehensive error handling that provides meaningful context and graceful
degradation

Status:
No runtime code: The PR introduces no executable logic; therefore, no error handling paths are present to
assess.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Secure Error Handling

Objective: To prevent the leakage of sensitive system information through error messages while
providing sufficient detail for internal debugging.

Status:
No user errors: Only documentation was changed; no user-facing error messages were added or modified.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Secure Logging Practices

Objective: To ensure logs are useful for debugging and auditing without exposing sensitive
information like PII, PHI, or cardholder data.

Status:
No logging code: The PR adds a diagram and text only; no logging statements are introduced to evaluate.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules

Generic: Security-First Input Validation and Data Handling

Objective: Ensure all data inputs are validated, sanitized, and handled securely to prevent
vulnerabilities

Status:
Documentation change: No input handling or data processing code is part of this change; nothing to validate
against this criterion.

Referred Code 
```mermaid
graph TD
    subgraph User Interaction
        A[User]
    end

    subgraph PeoPay Core Contracts
        B(PeoCoin)
        C(Staking)
        D(DCS)
        E(Governance)
        F(Conversion)
    end

    subgraph Off-Chain Services
        G[Backend Service]
    end

    A -- "Acquires" --> B
    A -- "Stakes PEO" --> C
    A -- "Votes on Proposals" --> E


 ... (clipped 13 lines)

Learn more about managing compliance generic rules or creating your own custom rules
Compliance status legend 🟢 - Fully Compliant
🟡 - Partial Compliant
🔴 - Not Compliant
⚪ - Requires Further Human Verification
🏷️ - Compliance label

@qodo-code-review

qodo-code-review Bot commented Nov 18, 2025

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PR Code Suggestions ✨

Explore these optional code suggestions:

CategorySuggestion                                                                                                                                    Impact
Possible issue
Correct data flow in architecture diagram

In the Mermaid diagram, reverse the direction of the arrows between the DCS
contract and the Staking and PeoCoin contracts to accurately reflect that DCS
reads data from them.

README.md [71-72]

-C -- "Reads Staking Info" --> D
-B -- "Reads Balance" --> D
+D -- "Reads Staking Info" --> C
+D -- "Reads Balance" --> B
  • Apply / Chat
Suggestion importance[1-10]: 7

__

Why: The suggestion correctly identifies a logical error in the data flow of the architecture diagram, which could mislead readers about how the system functions.

Medium
  • More

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