docs: rewrite README with compelling problem → solution narrative

[Copilot]

Summary

README lacked a clear problem statement, before/after framing, and structure for different reader personas (evaluator, implementer, contributor). Rewrites it with a 10-section narrative arc from problem hook to roadmap.

Changes

• Hero section — tagline + proof line (536 tests · zero deps · deterministic · Python ≥ 3.10)
• The Problem — concrete token overflow scenario: naive concat (10× overflow) vs cherry-pick (loses dependency chains) vs contextweaver's phase-specific compilation; links to examples/before_after.py
• How contextweaver Solves It — adapted ASCII flow diagram from docs/architecture.md; explicit 8-stage Context Engine and 4-stage Routing Engine lists
• Quickstart — minimal agent loop + routing snippet, both copy-paste ready
• Framework Integrations — 6-entry table; MCP and A2A linked to existing guides, others marked "coming soon" per scope boundaries
• Why Trust contextweaver? — 6 evidence-based proof points in table format (test count, zero deps, determinism, protocol stores, MCP+A2A, BuildStats)
• Core Concepts — 6-entry table linking to docs/concepts.md and docs/architecture.md
• Roadmap — versioned milestones (v0.1 ✅, v0.2 🚧, v0.3/Future 📋)
• CLI, Examples, Development sections preserved from original

All 7 internal relative links verified valid.

Checklist

• Tests added or updated for every new/changed public function
• make ci passes locally (fmt + lint + type + test + example + demo)
• CHANGELOG.md updated under ## [Unreleased]
• Docstrings added for all new public APIs (Google-style)
• Every modified module stays ≤ 300 lines (or a decomposition issue is linked above)
• Related issue linked in the summary above
• Agent-facing docs updated if pipeline, API, or conventions changed

Notes for reviewers

Documentation-only change — no code touched. The "coming soon" framework integration entries deliberately link to no docs yet; those are scoped to separate issues per the original issue spec.

Original prompt

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This section details on the original issue you should resolve

<issue_title>docs: rewrite README with compelling problem → solution narrative</issue_title>
<issue_description>## Problem Statement

The current README provides functional information but fails to:

1. Clearly articulate the pain point: Why context management is a critical problem for AI agent reliability
2. Differentiate: Why structured context compilation beats naive concatenation
3. Position: Why contextweaver is positioned as an emerging standard for agent context management
4. Inspire action: Quick path to first success + clear framework integration examples

Current README structure is: features → install → quickstart → CLI → examples → docs → dev

Missing elements:

• Concrete "before/after" comparison showing the problem
• "Why trust this?" section with tangible proof points
• Skimmable structure optimized for different reader personas (evaluator, implementer, contributor)
• Framework-specific examples in README (currently generic)
• Roadmap + adoption signals

Proposed Solution

Rewrite README.md with this structure:

1. Hero Section (30 seconds)

• Problem hook: "AI agents break when context exceeds token limits or includes irrelevant noise"
• Solution tagline: "contextweaver compiles phase-specific, budget-aware context from multi-source history"
• Quick proof: "175 tests passing, zero dependencies, deterministic output"

2. The Problem (1 minute read)

• Concrete scenario: Tool-using agent with 100+ tool catalog + 50-turn conversation
• Naive approach fails: Concatenate everything → token overflow OR cherry-pick manually → lose dependencies
• Cost: Unreliable routing, hallucinated tool calls, lost conversation context
• Include snippet from examples/before_after.py showing token bloat

3. How contextweaver Solves It (2 minutes)

• Context Engine: Phase-specific budgets (route/call/interpret/answer), dependency closure, deduplication, context firewall
• Routing Engine: Bounded-choice navigation via DAG + beam search (never show 100 tools to LLM)
• Result: Deterministic, budget-aware prompts with complete dependency chains

Visual: simple ASCII flow diagram (already exists in architecture.md, adapt it)

4. 10-Minute Quickstart (copy-paste ready)

Link to new docs/quickstart.md (see separate issue #N) with:

• Install + minimal agent loop (5 lines of code)
• Expected output
• Next steps: "Try it with your framework below"

5. Framework Integration Examples (prominent section)

Link to new integration guides (see separate issues):

• LlamaIndex: docs/integration_llamaindex.md
• OpenAI ADK: docs/integration_openai_adk.md
• Google ADK: docs/integration_google_adk.md
• Pipecat: docs/integration_pipecat.md
• LangChain/LangGraph: docs/integration_langchain.md

Table format:

Framework	Guide	Example	Use Case
LlamaIndex	Guide	Code	RAG + tools with budget control
...	...	...	...

6. Why Trust contextweaver? (evidence-based positioning)

• Test coverage: 175 tests passing (context pipeline, routing, firewall, adapters)
• Design rationale: Protocol-based, zero-dependency, deterministic (link to architecture.md)
• MCP + A2A adapters: First-class support for emerging standards
• Roadmap transparency: Link to GitHub Projects or CHANGELOG.md
• No vendor lock-in: Stdlib only, works with any LLM provider

7. Core Concepts (2-minute overview)

Extract from docs/concepts.md:

• ContextItem + phases
• Context firewall
• Routing DAG
• ResultEnvelope
  Link to full concepts doc for deep dive

8. CLI + Examples (current content, keep as-is)

Current CLI and examples table is good, keep it

9. Development (current content, keep as-is)

10. Roadmap (new section)

• v0.1: Foundation engines (✅ complete)
• v0.2: Framework integrations, benchmarks (🚧 in progress, link issues)
• v0.3: DAG visualization, merge compression, LLM labeler (📋 planned)
• Future: Context versioning, distributed stores, multi-agent coordination

Acceptance Criteria

• README.md restructured with 10 sections above
• "The Problem" section includes concrete before/after example
• "How contextweaver Solves It" section with ASCII diagram
• "Why Trust contextweaver?" section with 5+ tangible proof points (no marketing fluff)
• Framework integration table with 6 entries (links to separate docs, created in other issues)
• Roadmap section with versioned milestones
• Total length: 300-400 lines (currently ~140), optimized for skimming with headers
• All internal links valid (use relative paths)
• Tone: confident but honest, evidence-based, developer-friendly

Scope Boundaries

In scope:

• README.md rewrite only
• Link to new docs/guides (don't create them in this issue)
• Adapt existing architecture.md diagram to README
• Extract snippets from existing examples/

**Ou...

• Fixes docs: rewrite README with compelling problem → solution narrative #75

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[Copilot]

Pull request overview

Rewrites README.md into a more narrative, persona-friendly introduction that frames the “context window problem”, explains contextweaver’s two-engine approach, and provides a copy‑paste quickstart plus trust/roadmap sections.

Changes:

• Adds a concrete “Problem → approaches → contextweaver solution” before/after framing with a link to examples/before_after.py.
• Documents the Context Engine (8 stages) and Routing Engine (4 stages) with an ASCII diagram and skimmable tables (integrations, trust signals, concepts, roadmap).
• Refreshes the Quickstart with a minimal agent loop and routing snippet.