{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"tool_marscode","slug":"marscode","name":"MarsCode","type":"product","url":"https://marscode.com","page_url":"https://unfragile.ai/marscode","categories":["code-editors"],"tags":[],"pricing":{"model":"freemium","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"tool_marscode__cap_0","uri":"capability://code.generation.editing.real.time.syntax.error.detection.during.typing","name":"real-time syntax error detection during typing","description":"MarsCode analyzes code as it's being written using incremental parsing, identifying syntax errors and common mistakes before compilation or runtime. The system likely uses a lightweight AST parser or tokenizer that runs on each keystroke or at configurable intervals, comparing against language grammar rules to flag issues like mismatched brackets, undefined variables, or type mismatches. This approach catches errors in the development loop rather than waiting for build/test phases.","intents":["I want to catch typos and syntax errors immediately while coding instead of discovering them at compile time","I need visual feedback on code correctness as I write to reduce context-switching to error logs","I want to understand why a line of code is invalid before I finish writing it"],"best_for":["junior developers learning language syntax","solo developers working without CI/CD pipelines","teams using interpreted languages where runtime errors are expensive"],"limitations":["Real-time parsing adds latency on large files (>10K lines) or complex nested structures","Language-specific error detection quality varies; may miss semantic errors that require full type inference","Cannot detect runtime errors or logic bugs, only syntactic violations"],"requires":["IDE or editor integration (VS Code, JetBrains, or web-based editor)","Language grammar definitions for each supported language","Minimum 100ms refresh rate for keystroke-triggered analysis"],"input_types":["source code (text)","language identifier (string)"],"output_types":["error annotations (line number, column, message)","diagnostic severity (error, warning, info)"],"categories":["code-generation-editing","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_1","uri":"capability://code.generation.editing.performance.aware.code.optimization.suggestions","name":"performance-aware code optimization suggestions","description":"MarsCode analyzes code patterns and suggests optimizations by identifying inefficient constructs (e.g., nested loops, redundant operations, suboptimal algorithms) and recommending improvements with explanations of performance trade-offs. The system likely uses pattern matching against a rule set of common anti-patterns and best practices, then ranks suggestions by estimated performance impact. Suggestions include context about why the optimization matters (e.g., 'reduces O(n²) to O(n log n)').","intents":["I want to understand why my code is slow and what specific changes would improve performance","I need suggestions for algorithmic improvements without having to manually profile my code","I want to learn performance best practices by seeing real-time suggestions on my own code"],"best_for":["junior and mid-level developers building performance-sensitive applications","teams without dedicated performance engineers or profiling expertise","educational contexts where learning optimization patterns is a goal"],"limitations":["Suggestions are heuristic-based and may not apply to all contexts (e.g., premature optimization warnings)","Cannot measure actual performance impact without runtime profiling; estimates are theoretical","Limited to pattern-matching; cannot detect complex algorithmic inefficiencies requiring deep semantic analysis","No integration with actual profilers (CPU, memory) to validate suggestions"],"requires":["Language-specific optimization rule set (varies by language)","Code context window of at least 50-100 lines for pattern detection","Optional: runtime metrics or profiling data for validation (not required for suggestions)"],"input_types":["source code (text)","language identifier (string)","optional: performance metrics (JSON)"],"output_types":["optimization suggestions (text with code examples)","estimated complexity improvement (string, e.g., 'O(n²) → O(n log n)')","priority/severity (enum: high, medium, low)"],"categories":["code-generation-editing","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_2","uri":"capability://code.generation.editing.multi.language.code.completion.with.context.awareness","name":"multi-language code completion with context awareness","description":"MarsCode provides intelligent code completion suggestions by analyzing the current code context (surrounding lines, function signatures, variable types) and predicting the next logical tokens or statements. The system uses language-specific parsers to understand scope, type information, and available APIs, then ranks completion candidates by relevance. Completions are triggered on-demand or automatically after typing triggers (e.g., '.', '(', or whitespace).","intents":["I want faster code writing with intelligent suggestions for method names, variable completions, and API calls","I need completions that understand my codebase context, not just generic snippets","I want to explore available APIs and methods without leaving my editor"],"best_for":["developers working in multiple programming languages","teams with large codebases where context-aware suggestions reduce lookup time","developers seeking faster iteration without sacrificing code quality"],"limitations":["Completion quality degrades in unfamiliar codebases or with non-standard naming conventions","Context window is limited (typically 50-200 lines); cannot leverage full codebase for suggestions","No integration with external package managers or documentation; suggestions limited to local code","Latency increases with context size; may feel sluggish on slow machines or large files"],"requires":["Language grammar and type system definitions for each supported language","Minimum 50ms response time for interactive completion (target <100ms)","Optional: local codebase indexing for cross-file context (improves quality but adds setup)"],"input_types":["source code (text)","cursor position (line, column)","language identifier (string)","optional: codebase index (structured data)"],"output_types":["completion candidates (list of strings)","completion metadata (type, documentation, priority)","insertion text (string with placeholders for parameters)"],"categories":["code-generation-editing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_3","uri":"capability://code.generation.editing.framework.specific.code.generation.and.scaffolding","name":"framework-specific code generation and scaffolding","description":"MarsCode generates boilerplate code and project scaffolding for popular frameworks (e.g., React, Django, Spring Boot) by matching user intent or partial code patterns against framework templates and conventions. The system likely uses a rule-based or template-driven approach to generate idiomatic code that follows framework best practices, including proper file structure, imports, and configuration. Generation is triggered by keywords, file names, or explicit commands.","intents":["I want to quickly scaffold a new component or module following framework conventions without manual setup","I need boilerplate code for common patterns (e.g., API endpoints, React hooks) that I can customize","I want to ensure my generated code follows framework best practices and idioms"],"best_for":["developers building applications with popular frameworks","teams onboarding new developers who need consistent scaffolding","rapid prototyping scenarios where boilerplate generation saves time"],"limitations":["Limited to frameworks with well-defined conventions; custom or niche frameworks not supported","Generated code may require customization for specific use cases; not suitable for complex logic","No integration with project configuration (e.g., package.json, requirements.txt); may generate incompatible versions","Cannot generate code for framework-specific advanced patterns (e.g., complex middleware chains)"],"requires":["Framework templates and conventions database","Language-specific code generation engine","Supported frameworks: React, Vue, Angular, Django, Flask, Spring Boot, FastAPI (exact list unknown)"],"input_types":["framework identifier (string)","component/module type (string, e.g., 'component', 'endpoint')","optional: partial code or intent description (text)"],"output_types":["generated code (text)","file structure (JSON or tree format)","configuration snippets (YAML, JSON, or language-specific)"],"categories":["code-generation-editing","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_4","uri":"capability://memory.knowledge.incremental.codebase.indexing.for.cross.file.context","name":"incremental codebase indexing for cross-file context","description":"MarsCode builds and maintains an index of the local codebase to enable context-aware suggestions and refactoring across multiple files. The system uses incremental parsing to track changes, building an AST or symbol table that maps function names, class definitions, imports, and type information. This index is queried during completion and optimization suggestion phases to provide suggestions that account for the broader codebase structure, not just the current file.","intents":["I want code completion and suggestions that understand my entire codebase, not just the current file","I need to refactor code across multiple files with confidence that changes are consistent","I want to navigate and understand dependencies between modules without manual exploration"],"best_for":["developers working on medium to large codebases (>100 files)","teams with complex module dependencies requiring cross-file awareness","projects where consistency across files is critical"],"limitations":["Indexing adds startup latency (typically 1-5 seconds for 1K+ files) and requires disk space for index storage","Index staleness can occur if files are edited outside the editor; requires periodic re-indexing","Limited to local codebase; cannot index external dependencies or third-party libraries","Index accuracy depends on language parser quality; may miss dynamic imports or metaprogramming"],"requires":["Local file system access with read permissions","Language-specific AST parser for each supported language","Disk space for index storage (typically 10-50% of source code size)","Background indexing process (non-blocking, runs during idle time)"],"input_types":["codebase directory path (string)","language identifiers (list of strings)","optional: ignore patterns (regex or glob)"],"output_types":["symbol index (structured data: functions, classes, imports)","dependency graph (JSON or graph format)","type information (language-specific)"],"categories":["memory-knowledge","code-generation-editing"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_5","uri":"capability://code.generation.editing.language.agnostic.refactoring.with.semantic.awareness","name":"language-agnostic refactoring with semantic awareness","description":"MarsCode supports refactoring operations (rename, extract function, move code) across multiple programming languages by using language-specific AST analysis to understand code semantics and ensure refactoring correctness. The system parses code into an AST, identifies all references to a symbol or code block, and applies transformations while preserving semantics. Refactoring operations are language-aware, respecting scoping rules, type systems, and language-specific idioms.","intents":["I want to safely rename a function or variable across my entire codebase without breaking references","I need to extract a code block into a separate function with correct parameter and return type inference","I want to move code between files while automatically updating imports and references"],"best_for":["developers working on large codebases where manual refactoring is error-prone","teams maintaining code quality through regular refactoring","polyglot projects using multiple programming languages"],"limitations":["Refactoring accuracy depends on AST parser quality; may fail on dynamic code or metaprogramming","Limited to supported refactoring operations (rename, extract, move); complex refactorings require manual intervention","No integration with version control; refactoring changes must be manually reviewed and committed","Refactoring latency increases with codebase size; may require background processing for large operations"],"requires":["Language-specific AST parser and semantic analyzer","Codebase index (from cross-file indexing capability)","Write access to source files","Optional: version control integration for change tracking"],"input_types":["refactoring operation type (enum: rename, extract, move)","target symbol or code range (line, column, length)","new name or destination (string or path)","optional: refactoring parameters (JSON)"],"output_types":["refactored code (text)","list of modified files (JSON)","change summary (text with statistics)","optional: diff preview (unified diff format)"],"categories":["code-generation-editing","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_6","uri":"capability://code.generation.editing.intelligent.code.review.and.quality.assessment","name":"intelligent code review and quality assessment","description":"MarsCode analyzes code for quality issues, style violations, and potential bugs by comparing against a rule set of best practices, design patterns, and common anti-patterns. The system uses static analysis techniques (AST inspection, control flow analysis, data flow analysis) to identify issues like unused variables, unreachable code, potential null pointer dereferences, and style violations. Results are ranked by severity and include explanations and suggested fixes.","intents":["I want automated code review feedback before submitting pull requests to catch common issues early","I need to understand code quality metrics and areas for improvement in my codebase","I want to enforce team coding standards and best practices without manual review overhead"],"best_for":["solo developers seeking automated code review without peer review","teams wanting to enforce coding standards and reduce review burden","junior developers learning code quality best practices"],"limitations":["Static analysis cannot detect runtime errors or logic bugs; requires testing for validation","Rule set is generic; may produce false positives or miss domain-specific issues","No integration with team coding standards or custom linting rules","Cannot assess code readability or architectural decisions; limited to syntactic and simple semantic analysis"],"requires":["Language-specific static analysis rules and AST parser","Rule database covering common anti-patterns and best practices","Optional: custom rule configuration (JSON or YAML)"],"input_types":["source code (text)","language identifier (string)","optional: rule configuration (JSON)"],"output_types":["quality issues (list with line number, severity, message)","suggested fixes (text with code examples)","quality score (numeric or categorical)","optional: detailed report (JSON or HTML)"],"categories":["code-generation-editing","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_7","uri":"capability://tool.use.integration.ide.and.editor.integration.with.plugin.architecture","name":"ide and editor integration with plugin architecture","description":"MarsCode integrates with popular IDEs and editors (VS Code, JetBrains IDEs, web-based editors) through a plugin or extension architecture, providing seamless access to all capabilities within the developer's existing workflow. The integration likely uses language server protocol (LSP) or IDE-specific APIs to communicate between MarsCode backend and the editor frontend, enabling real-time feedback, inline suggestions, and command palette integration. The plugin handles UI rendering, user interactions, and result display.","intents":["I want AI-assisted coding without switching away from my preferred IDE or editor","I need real-time feedback and suggestions integrated directly into my editor's UI","I want to configure MarsCode behavior and preferences within my IDE settings"],"best_for":["developers using VS Code, JetBrains IDEs, or other popular editors","teams with standardized IDE choices seeking unified AI assistance","developers wanting minimal context-switching during coding"],"limitations":["Plugin quality and feature parity varies across different IDEs; some features may be unavailable in certain editors","IDE-specific APIs change with updates; plugin maintenance requires ongoing compatibility work","Performance depends on IDE and system resources; heavy plugins can slow down editor responsiveness","Limited to editor capabilities; cannot extend beyond what the IDE's plugin API allows"],"requires":["Supported IDE or editor (VS Code, JetBrains IntelliJ IDEA, PyCharm, WebStorm, etc.)","Plugin installation from marketplace or manual installation","Optional: MarsCode account or API key for cloud features"],"input_types":["IDE events (file open, keystroke, selection change)","user commands (from command palette or keyboard shortcuts)","editor state (cursor position, selection, visible code)"],"output_types":["inline suggestions and completions (rendered in editor)","diagnostic annotations (error squiggles, warnings)","refactoring previews (diff view)","command results (notifications, status bar updates)"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_marscode__cap_8","uri":"capability://automation.workflow.freemium.access.model.with.usage.based.tier.progression","name":"freemium access model with usage-based tier progression","description":"MarsCode offers a freemium pricing model where core capabilities (error detection, basic completion, optimization suggestions) are available to free users with usage limits, while premium tiers unlock higher usage quotas, advanced features, and priority support. The system tracks usage metrics (completions per day, refactoring operations, code review requests) and enforces limits transparently, allowing users to upgrade when needed. This model removes barriers to entry for individual developers while enabling monetization from power users.","intents":["I want to try AI-assisted coding without upfront payment commitment","I need to understand my usage and upgrade only when I hit limits","I want predictable pricing that scales with my actual usage"],"best_for":["individual developers and freelancers with budget constraints","small teams evaluating AI coding tools before committing to subscriptions","open-source developers and students seeking free or low-cost tools"],"limitations":["Free tier usage limits may be restrictive for power users or large teams","Upgrade path and pricing tiers are not clearly documented in available information","No information on data retention or privacy policies for free users","Freemium model may create friction when users hit limits unexpectedly"],"requires":["User account creation (email or OAuth)","Optional: payment method for premium tier upgrade","Internet connection for usage tracking and authentication"],"input_types":["user account credentials (email, password)","optional: payment information (credit card)"],"output_types":["account status (free, premium, enterprise)","usage metrics (JSON: completions, refactorings, reviews)","tier limits and upgrade recommendations (JSON)"],"categories":["automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":39,"verified":false,"data_access_risk":"high","permissions":["IDE or editor integration (VS Code, JetBrains, or web-based editor)","Language grammar definitions for each supported language","Minimum 100ms refresh rate for keystroke-triggered analysis","Language-specific optimization rule set (varies by language)","Code context window of at least 50-100 lines for pattern detection","Optional: runtime metrics or profiling data for validation (not required for suggestions)","Language grammar and type system definitions for each supported language","Minimum 50ms response time for interactive completion (target <100ms)","Optional: local codebase indexing for cross-file context (improves quality but adds setup)","Framework templates and conventions database"],"failure_modes":["Real-time parsing adds latency on large files (>10K lines) or complex nested structures","Language-specific error detection quality varies; may miss semantic errors that require full type inference","Cannot detect runtime errors or logic bugs, only syntactic violations","Suggestions are heuristic-based and may not apply to all contexts (e.g., premature optimization warnings)","Cannot measure actual performance impact without runtime profiling; estimates are theoretical","Limited to pattern-matching; cannot detect complex algorithmic inefficiencies requiring deep semantic analysis","No integration with actual profilers (CPU, memory) to validate suggestions","Completion quality degrades in unfamiliar codebases or with non-standard naming conventions","Context window is limited (typically 50-200 lines); cannot leverage full codebase for suggestions","No integration with external package managers or documentation; suggestions limited to local code","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.31666666666666665,"quality":0.67,"ecosystem":0.2,"match_graph":0.25,"freshness":0.75,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.1,"match_graph":0.35,"freshness":0.05}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:31.857Z","last_scraped_at":"2026-04-05T13:23:42.560Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=marscode","compare_url":"https://unfragile.ai/compare?artifact=marscode"}},"signature":"uODl8/fGZfsd12JxBGzS70Zhg7pDVW31eB7JJXO3FZvbpOgzS6JNYcvH+3HzsS/1XKLMkDe9vXlR9Rz2HIDECQ==","signedAt":"2026-06-21T12:37:16.587Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/marscode","artifact":"https://unfragile.ai/marscode","verify":"https://unfragile.ai/api/v1/verify?slug=marscode","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}