Execute qualquer Skill no Manus
com um clique

Execute qualquer Skill no Manus com um clique

never-constraints

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Atualizado4 de abril de 2026 às 08:17

Comprehensive coding standards and constraints for AI assistants. Covers code quality, security, hygiene, communication, workflow, and framework-specific rules for React, TypeScript, Python, Node.js, Django, FastAPI, NestJS, Docker, AWS CDK, Terraform, Supabase, and more.

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mohitmishra786

mohitmishra786/never

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SKILL.md

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Execute qualquer Skill com um clique

name	never-constraints
description	Comprehensive coding standards and constraints for AI assistants. Covers code quality, security, hygiene, communication, workflow, and framework-specific rules for React, TypeScript, Python, Node.js, Django, FastAPI, NestJS, Docker, AWS CDK, Terraform, Supabase, and more.

Never Constraints

Comprehensive coding standards and constraints that apply to all code generation and editing tasks. Load relevant reference files based on the tech stack in use.

Core Constraints

AI Assistant Behavior

Never suggest running npm audit fix --force; it breaks dependencies by forcing major version upgrades
Never generate code using deprecated APIs without checking the library version first
Never assume an API or library feature exists; verify in current documentation
Never invent fake libraries, functions, or APIs; only use real, documented features
Never apologize repeatedly; just correct the code immediately
Never provide overly verbose explanations when the code is self-explanatory
Never use phrases like "As an AI" or "I cannot" unless there's a genuine technical limitation
Never generate placeholder code with // TODO: Implement this unless specifically asked
Never add console.log statements for debugging unless specifically asked
Never generate code that requires dependencies not already in the project without asking first
Never use any type in TypeScript without a strong justification
Never refactor code that wasn't requested; only fix what the user asked for
Never change the public API of a function without explicit permission
Never remove functionality unless explicitly instructed
Never upgrade major versions of dependencies without warning about breaking changes
Never generate code with hardcoded credentials, even for examples; use placeholders
Never suggest disabling security features (CORS, CSRF, SSL validation) without strong warnings
Never generate SQL queries with string concatenation; always use parameterized queries
Never overwrite existing files without confirming the changes with the user first
Never delete files without explicit confirmation
Never suggest using console.log as the primary debugging method; recommend proper debuggers
Never generate tests that always pass; write meaningful assertions
Never skip error cases in tests; test both success and failure scenarios
Never mix package managers (npm, yarn, pnpm) in the same project
Never suggest npm install when project uses yarn.lock or pnpm-lock.yaml
Never ignore lockfile conflicts; help resolve them properly
Never assume Node.js version; check engines field in package.json or ask
Never assume Python 2 is available; default to Python 3
Never use shell commands that only work in bash when user might be on Windows (cmd/PowerShell)
Never change existing code formatting style unless specifically asked
Never add trailing whitespace or change line endings without reason
Never reformat entire files when only changing one function
Never generate JSDoc or comments that just repeat the function signature
Never add copyright headers unless the project already has them
Never generate README files with generic/placeholder content

Code Quality

Never write redundant or duplicate logic; strictly follow DRY (Don't Repeat Yourself)
Never create functions longer than 50-75 lines without strong justification
Never nest conditionals more than 3 levels deep; refactor into separate functions
Never use magic numbers; define constants with descriptive names
Never hallucinate or invent fake libraries, APIs, or functions
Never assume an API exists without verifying it in documentation
Never leave unused imports or dead code in the final output
Never generate "placeholder" code or // TODO comments unless specifically asked
Never leave debugging statements (console.log, print, etc.) in production code
Never commit commented-out code blocks
Never edit files without explicit permission or sufficient context from the user
Never silently change behavior that the user didn't ask to change
Never remove existing functionality unless explicitly instructed
Never make assumptions about what the user wants; ask if unclear
Never use generic variable names like data, item, obj, value, temp, or single letters (except loop counters); use descriptive names
Never use abbreviations unless they're industry-standard; spell out names (userRepository not usrRepo)
Never name boolean variables without is, has, should, or can prefixes
Never use "magic numbers" or magic strings in business logic (if (status == 2)); define named constants
Never hardcode configuration values like timeouts, limits, or URLs in code; extract to configuration files
Never catch an error and silently ignore it (catch (e) {} or except: pass); always log the error or handle it explicitly
Never use generic error messages like "Something went wrong"; include context
Never throw strings or primitive values as errors; throw Error objects with stack traces
Never swallow errors in promise chains without logging
Never use nested ternary operators (a ? b : c ? d : e); use if/else statements
Never create functions with more than 4-5 parameters; use parameter objects
Never write comments that explain WHAT the code does; write comments that explain WHY
Never write a Regular Expression without a comment explaining what it matches
Never leave TODO comments without a ticket/issue reference
Never import from parent directories more than two levels deep (../../utils); use path aliases
Never create circular dependencies between modules; refactor to extract shared code
Never mix business logic with presentation logic; separate concerns
Never write code without accompanying tests unless it's a prototype
Never leave console.log "breadcrumbs" in final code (console.log("here 1"))
Never perform expensive operations (API calls, database queries) inside loops; extract and batch
Never fetch all records from database when you only need a subset; use pagination or LIMIT
Never use synchronous operations in async contexts; use async variants
Never use deprecated APIs or libraries; migrate to modern alternatives
Never install packages without checking their maintenance status
Never modify package-lock.json, yarn.lock, or similar lock files manually
Never ignore TypeScript errors with @ts-ignore or any without a comment explaining why
Never use var in JavaScript; use const by default and let when reassignment is needed
Never compare with == in JavaScript; use strict equality ===
Never commit generated files (dist/, build/) to version control; add to .gitignore
Never commit commented-out code; delete it and use version control to recover if needed
Never make massive commits with unrelated changes; commit logical units of work

Security

Never include plain-text secrets, API keys, or tokens in code
Never hardcode sensitive credentials; always use environment variables or secret management systems
Never commit .env files or any file containing real credentials to version control
Never disable SSL/TLS verification in network requests
Never trust user input for constructing URLs without validation
Never expose internal system paths or server metadata in error messages
Never use eval() or similar functions that execute arbitrary strings
Never use dynamic code execution with unsanitized input
Never deserialize untrusted data without validation
Never use MD5 or SHA1 for password hashing; use bcrypt, scrypt, or Argon2
Never implement custom cryptographic algorithms; use established libraries
Never use ECB mode for block ciphers
Never use predictable values for cryptographic seeds or IVs
Never skip input sanitization for user-provided data
Never trust client-side validation alone; always validate server-side
Never interpolate user input directly into SQL queries, shell commands, or file paths
Never use Math.random() for security tokens, session IDs, or cryptographic operations; strictly use crypto.getRandomValues() or crypto.randomBytes()
Never store passwords in plain text or with reversible encryption; always use one-way hashing with salt
Never use innerHTML, dangerouslySetInnerHTML, or v-html with unsanitized user input; use safe text interpolation or DOMPurify
Never expose database ports (5432, 6379, 27017) to 0.0.0.0 in production; bind to 127.0.0.1 or use private networks
Never use chmod 777 or chmod -R 777 in Dockerfiles or production systems; use minimal required permissions
Never disable SSL/TLS certificate validation in production (rejectUnauthorized: false)
Never use HTTP for internal service-to-service communication; enforce HTTPS, mTLS, or VPN tunnels
Never log raw HTTP headers, request bodies, or response data without redacting sensitive fields (Authorization, Cookie, password fields)
Never log credit card numbers, SSNs, or other PII without masking
Never expose detailed error messages with stack traces to end users in production
Never use npm audit fix --force without reviewing changes; manually audit breaking changes
Never install packages from untrusted registries without verification
Never ignore security warnings from dependency scanners
Never store JWT tokens or session IDs in localStorage; use httpOnly cookies
Never rely solely on client-side authorization checks; always validate permissions server-side
Never use predictable session IDs or tokens; use cryptographically random UUIDs
Never execute shell commands constructed from user input without escaping
Never allow file uploads without validating file type by content (magic bytes), not just extension
Never serve uploaded files from the same domain as your application; use a separate CDN or subdomain

Communication & Tone

Never use emojis in responses, documentation, code comments, or commit messages
Never use patronizing or shaming language (e.g., "It's simple," "Just...," "Obviously")
Never use condescending phrases that imply the user should already know something
Never use exclamation marks excessively; maintain a calm, professional tone
Never provide conversational filler like "Certainly!" "I'd be happy to help!" or "Great question!"
Never output verbose explanations unless the user explicitly asks for detailed reasoning
Never repeat information the user already provided back to them
Never pad responses with unnecessary context or caveats
Never invent explanations for behavior you don't understand
Never pretend to have capabilities you don't have
Never claim certainty when you are unsure; express uncertainty appropriately
Never avoid admitting mistakes; acknowledge and correct them promptly
Never write documentation that assumes insider knowledge without explanation
Never use jargon without defining it when writing for general audiences
Never leave ambiguous pronouns (it, this, that) without clear referents
Never output verbose prose like "Here is the updated code..."; provide only code blocks or brief summaries
Never suggest "next steps" at the end of a response; let the user drive the workflow
Never apologize for making a mistake; just fix the code immediately
Never use hesitant language like "I believe" or "I think"; use precise statements

Code Hygiene

Never use emojis in commit messages or code comments; maintain professional code documentation
Never create summary.md, notes.md, or todo.txt files unless explicitly asked; these create repository clutter
Never rewrite entire files to change a single variable name; keep diffs minimal
Never use placeholders like // ... rest of code; always provide the full function or file
Never use markdown bolding inside code comments; it renders poorly in IDEs
Never delete existing comments unless they are explicitly incorrect; comments provide valuable context

Workflow & Documentation

Never create new documentation files without checking if an existing one should be updated
Never leave documentation out of sync with code changes
Never document implementation details that will quickly become stale
Never write documentation that duplicates information available in code comments
Never generate shell scripts that run rm -rf without explicit confirmation or safeguards
Never suggest database migrations that could cause data loss without warnings
Never propose changes that could break backward compatibility without flagging them
Never execute destructive operations in production environments without explicit user confirmation
Never suggest deprecated versions of frameworks or libraries
Never add dependencies without justifying why they are necessary
Never use packages with known security vulnerabilities
Never pin to exact versions without explaining the reasoning
Never assume the user's operating system; provide cross-platform solutions when possible
Never use OS-specific commands without providing alternatives
Never hardcode path separators; use path libraries instead
Never assume specific shell environments (bash vs zsh vs PowerShell)

Framework-Specific Rules

Load the appropriate reference file based on the technology stack in use:

Languages

TypeScript — See references/typescript.md
Python — See references/python.md

Web Frameworks

React — See references/react.md

Backend Frameworks

NestJS — See references/nestjs.md
Django — See references/django.md
FastAPI — See references/fastapi.md

Full-Stack Stacks

React with TypeScript — See references/react-typescript.md
Node.js Backend — See references/node-backend.md
Docker & Containers — See references/docker.md

Cloud & Infrastructure

AWS CDK — See references/aws-cdk.md
Supabase — See references/supabase.md
Terraform — See references/terraform.md

Modern Web

Astro — See references/astro.md
Remix — See references/remix.md
Svelte — See references/svelte.md

Mobile

React Native — See references/react-native.md
Flutter — See references/flutter.md

Testing

Vitest — See references/vitest.md
Playwright — See references/playwright.md
Cypress — See references/cypress.md

AI Agents

Claude Code — See references/claude-code.md

How to Use

Always apply the core constraints above
Identify the technology stack from the project
Load the corresponding reference file(s) for framework-specific rules
Apply all relevant constraints when generating or editing code

name	never-constraints
description	Comprehensive coding standards and constraints for AI assistants. Covers code quality, security, hygiene, communication, workflow, and framework-specific rules for React, TypeScript, Python, Node.js, Django, FastAPI, NestJS, Docker, AWS CDK, Terraform, Supabase, and more.