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Config management patterns: env vars, config files, settings structs, secrets injection. Validation, layering, fail-fast, twelve-factor.
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SOC 職業分類に基づく
Session bootstrap + workflows for Pathfinder semantic navigation tools. Covers: discovery protocol, tool chaining patterns (explore, impact, audit, debug), search optimization, LSP degraded mode, and error recovery.
Playwright browser automation via MCP. Covers E2E testing, UI review, web scraping, screenshot capture, and general browser interaction. MCP-first — CLI is fallback only.
Safe command execution: input sanitization, timeout handling, output capture, error propagation. For spawning processes, shell commands, system calls.
Git conventions: conventional commits, branch naming, PR hygiene, release tagging.
Structured incident workflow: severity classification, triage, diagnosis, mitigation, postmortem, and prevention. Template-driven with blameless review.
Constructs, validates, and traverses a Directed Acyclic Graph (DAG) from scope cards for safe level-based parallel dispatch. Determines execution order via topological sort. Detects cycles and invalid dependencies.
| name | configuration-management-principles |
| description | Config management patterns: env vars, config files, settings structs, secrets injection. Validation, layering, fail-fast, twelve-factor. |
| user-invocable | false |
Config: env-specific values (URLs, creds, timeouts), changes between envs, changes without deploy. Code: business logic, same across envs, requires deploy.
Never hardcode: ❌ const DB_URL = "postgresql://prod:5432" → ✅ const DB_URL = process.env.DATABASE_URL
Fail fast if required config missing/invalid. Clear error: "DATABASE_URL required."
Checks: type, format (URL/email/path), range (port 1-65535), dependencies (feature X → config Y required).
Hybrid: config files for structure + .env for secrets.
.env files: secrets + env-specific values only. Never committed except .env.template.
.env.template — blank values (COMMIT).env.development — local creds (DO NOT COMMIT)DEV_DB_HOST=123.45.67.89
DEV_DB_USERNAME=prod_user
DEV_DB_PASSWORD=a_very_secure_production_password
Feature files: grouped by function. Primary method for non-secret settings.
default: &default
adapter: postgresql
pool: 5
development:
<<: *default
host: localhost
database: myapp_dev
username: <%= ENV['DEV_DB_USERNAME'] %>
password: <%= ENV['DEV_DB_PASSWORD'] %>
production:
<<: *default
host: <%= ENV['PROD_DB_HOST'] %>
database: myapp_prod
username: <%= ENV['PROD_DB_USERNAME'] %>
password: <%= ENV['PROD_DB_PASSWORD'] %>
Feature flags are a distinct, PRD-gated concern — see @.gemini/skills/feature-flags-principles/SKILL.md.