[EPIC] Production Hardening

[copyleftdev]

Depends On: #3, #6

POLYMCP-009

Goals

• Robust error handling with retries
• Configurable rate limiting
• Optional response caching
• Comprehensive documentation
• Release binaries for major platforms

Production-ready hardening including comprehensive error handling, rate limit management, optional caching, structured logging, documentation, and release packaging.

Acceptance Criteria

AC-1

• Given Polygon API returns a transient error
• When The client retries
• Then It uses exponential backoff with jitter and respects max retries config

AC-2

• Given A user makes many requests quickly
• When Approaching rate limits
• Then The client proactively throttles to avoid 429s

AC-3

• Given Caching is enabled
• When The same request is made within TTL
• Then The cached response is returned without API call

AC-4

• Given The project
• When cargo doc is run
• Then All public items have documentation with examples

AC-5

• Given A release is tagged
• When CI runs
• Then Binaries are published for Linux, macOS, and Windows

Technical Context

Crates: tracing, tracing-subscriber, moka, config

Files:

• src/config.rs
• src/cache.rs
• src/retry.rs
• .github/workflows/release.yml
• README.md
• CHANGELOG.md

Out of Scope

• Metrics/Prometheus endpoint
• Admin API

---

Source: epics/08-production.json
Content Hash: c1dc7b53bf3568ff