docs: distribution pass — readme, install matrix, comparison, dev guide, demo tape

Author: rahlk

CLAUDE.md

@@ -0,0 +1,15 @@
+# COCOA — dev guide
+
+Static system-graph engine. Package manager: `uv` (`uv sync --all-groups`).
+
+- Tests: `uv run pytest` (unit; integration/e2e/docker markers deselected by
+  default). `-m integration` runs a real cldk analyzer; `-m e2e` runs the Online
+  Boutique demo (network + analyzers; strict launch gate); `-m docker` builds and
+  smokes the image.
+- Module map: `cocoa/system/` = engine (detect → driver → facts → stitch →
+  datastore → build → blast → topology → report/htmlmap); `cocoa/cli.py` = typer
+  CLI; `cocoa/server.py` + `cocoa/tools/` = MCP; `skills//commands/` = plugin
+  content (validated by `test/test_plugin_assets.py`).
+- Provenance discipline is the product: never emit an edge without
+  `DERIVED-STATIC`/`INFERRED` tagging; skips are recorded, never silent.
+- Conventional commits, no trailers. Branch-per-issue `feat/issue-NNN-<slug>`.

README.md

@@ -1,19 +1,72 @@
 # COCOA — Code Context Agent
 
-Precise static system graphs of polyglot, k8s-native codebases — code + RPC
-topology + data access — for AI agents. Powered by [CLDK](https://github.com/codellm-devkit/python-sdk).
+**Precise static system graphs of polyglot, k8s-native codebases — for AI agents.**
 
-Status: v1 under construction. See issue #1 (epic).
+Point COCOA at a repo and it derives one queryable graph of the whole system:
+per-service call graphs, cross-service RPC edges (stitched from protos, call sites,
+and k8s wiring), and datastore access — every edge tagged `DERIVED-STATIC` (real
+static analysis, via [CLDK](https://github.com/codellm-devkit/python-sdk)) or
+`INFERRED` (labeled fallback). Never guessed.
+
+> **Graphify indexes files. COCOA understands systems.**
+> See the head-to-head: [docs/COMPARISON.md](docs/COMPARISON.md)
+
+## The hero query: blast radius
+
+```bash
+cocoa blast -p . --target hipstershop.Money.units --kind proto-field
+```
+
+…returns exactly which functions in which services break — across languages, across
+RPC boundaries, through the database — with call sites and provenance per hop.
+On Google's Online Boutique (11 services, 5 languages), the answer costs ~1/25,000th
+of the tokens an agent would burn reading every service (estimated; `cocoa demo`
+prints the measurement).
 
 ## Quick start
 
 ```bash
-uv run cocoa map -p /path/to/your/polyglot/repo     # build .cocoa/ artifacts
-uv run cocoa blast -p /path/to/repo --target hipstershop.Money.units --kind proto-field
-uv run cocoa serve -p /path/to/repo                 # MCP server (5 system tools)
-uv run cocoa demo                                   # Online Boutique flagship demo
+# no install (uv required):
+uvx --from git+https://github.com/codellm-devkit/cocoa cocoa map -p /path/to/repo
+uvx --from git+https://github.com/codellm-devkit/cocoa cocoa blast -p /path/to/repo \
+    --target <target> --kind <proto-field|rpc|function|table|redis-key>
+
+# flagship demo (clones Online Boutique, maps it, blasts a proto field):
+uvx --from git+https://github.com/codellm-devkit/cocoa cocoa demo
+
+# docker (all analyzers baked in, incl. the unreleased Go analyzer):
+docker run --rm -v "$PWD:/work" ghcr.io/codellm-devkit/cocoa map -p /work
 ```
 
-Requires Docker-less local analyzers today: Java/Python/TypeScript run via CLDK
-automatically; Go needs `codeanalyzer-go` on PATH (or pointed to via
-`CODEANALYZER_GO_BIN`); C# is recorded as skipped until `codeanalyzer-dotnet` ships.
+Agent setups (Claude Code plugin with skills + slash commands + MCP, Codex, Cursor,
+plain MCP): [docs/INSTALL.md](docs/INSTALL.md).
+
+## What you get
+
+| Artifact | What it is |
+|---|---|
+| `.cocoa/system-graph.json` | the full graph — query it forever without re-reading source |
+| `.cocoa/system-map.html` | self-contained interactive map, provenance-colored |
+| `.cocoa/SYSTEM_REPORT.md` | services, topology, data access, dead-RPC candidates, and **every skipped service with its reason** |
+
+## Language & analyzer status (honest)
+
+| Language | Analyzer | Status |
+|---|---|---|
+| Java | codeanalyzer-java (via cldk) | works; clean pip installs need the jar workaround ([python-sdk#236](https://github.com/codellm-devkit/python-sdk/issues/236)) — the Docker image includes it |
+| Python | codeanalyzer-python (via cldk) | works |
+| JS/TS | codeanalyzer-typescript (via cldk) | works |
+| Go | codeanalyzer-go | unreleased ([codeanalyzer-go#5](https://github.com/codellm-devkit/codeanalyzer-go/issues/5)); Docker image builds it from source; host installs need `codeanalyzer-go` on PATH or `$CODEANALYZER_GO_BIN` |
+| C# | codeanalyzer-dotnet | pending ([codeanalyzer-dotnet#1](https://github.com/codellm-devkit/codeanalyzer-dotnet/issues/1)) — services are recorded as skipped, never silently dropped |
+
+## Skills (the agent discipline layer)
+
+The plugin ships four skills modeled on the
+[obra/superpowers](https://github.com/obra/superpowers) paradigm: `using-cocoa`
+(answer system questions from the graph, not file reads), `mapping-a-system`,
+`blast-radius`, and `grounding-claims` — whose HARD-GATE is the product promise:
+*never present an `INFERRED` edge as fact.*
+
+## License
+
+MIT. Built on [CodeLLM-DevKit](https://codellm-devkit.info).

demo.tape

@@ -0,0 +1,13 @@
+Output demo.gif
+Set FontSize 15
+Set Width 1200
+Set Height 640
+Set Theme "Catppuccin Mocha"
+
+Type "cocoa demo"
+Enter
+Sleep 90s
+Type "cocoa blast -p ~/.cocoa/demo/microservices-demo-v0.10.5 --target hipstershop.Money.units --kind proto-field"
+Enter
+Sleep 8s
+Sleep 4s

docs/COMPARISON.md

@@ -0,0 +1,26 @@
+# COCOA vs. graphify
+
+[graphify](https://github.com/Graphify-Labs/graphify) popularized the "index your
+repo into a queryable graph" workflow for AI agents — one-command setup, three
+artifacts, token-efficient queries. COCOA adopts that exact UX and changes one
+thing: **where the edges come from.**
+
+| | graphify | COCOA |
+|---|---|---|
+| Unit of understanding | a folder of files | a distributed system |
+| Edge derivation | tree-sitter AST + LLM inference | real analyzers (WALA, Jedi, ts-morph, go/types via CLDK) + proto/k8s stitching |
+| Edge provenance | `EXTRACTED` / `INFERRED` / `AMBIGUOUS` | `DERIVED-STATIC` / `INFERRED` (labeled fallback only) |
+| Cross-language links | inferred by the model | derived: proto stubs ↔ handlers ↔ k8s wiring, with anchor-exclusivity and boundary-matching to prevent false edges |
+| Databases | absent | first-class: Redis ops, SQL tables, ORM mappings as graph nodes/edges |
+| k8s manifests | more files in the graph | a topology source (raw YAML + `helm template` + `kustomize build`) |
+| Impact queries | neighborhood lookups | cross-service blast radius with strongest-path provenance semantics |
+| Coverage honesty | n/a | every unanalyzed service recorded with a reason; truncation always labeled |
+| Artifacts | `graph.json` / `graph.html` / `GRAPH_REPORT.md` | `system-graph.json` / `system-map.html` / `SYSTEM_REPORT.md` |
+| Token efficiency | ~1.7k/query vs ~123k naive (their number) | same persisted-graph mechanism; `cocoa demo` measures ~25,000× on Online Boutique (estimate, printed per run) |
+
+The trade: graphify covers 36 grammars and multi-modal inputs (docs, PDFs, images)
+today; COCOA covers the languages with real analyzers (Java/Python/JS/TS shipped,
+Go built-from-source in Docker, C# pending) and only code + configs. If you need
+breadth-first repo Q&A, graphify is excellent. If an agent is about to *change* a
+distributed system and needs to know what breaks — edges that are derived, labeled,
+and complete-or-disclosed matter. That's COCOA.

docs/INSTALL.md

@@ -0,0 +1,54 @@
+# Installing COCOA
+
+COCOA is one Python package (`cocoa` CLI + MCP server) plus a skillset plugin.
+Until the PyPI name is freed (tracked in cocoa-mcp#3), install from git via uv.
+
+## Claude Code (full experience: skills + commands + MCP)
+
+```
+/plugin marketplace add codellm-devkit/cocoa
+/plugin install cocoa@cocoa
+```
+
+This registers the four skills, `/cocoa:map`, `/cocoa:blast`, `/cocoa:demo`, and an
+MCP server entry that launches `uvx --from git+https://github.com/codellm-devkit/cocoa
+cocoa serve -p .` in your project.
+
+## Codex / Cursor / other SKILL.md-compatible agents
+
+Copy the `skills/` directories into your agent's skills location (e.g.
+`~/.codex/skills/` or your Cursor rules directory) — each `SKILL.md` is
+self-contained and includes the CLI fallback, so no MCP setup is required.
+Install the CLI once: `uv tool install git+https://github.com/codellm-devkit/cocoa`.
+
+## Plain MCP (any MCP client)
+
+```json
+{
+  "mcpServers": {
+    "cocoa": {
+      "command": "uvx",
+      "args": ["--from", "git+https://github.com/codellm-devkit/cocoa",
+               "cocoa", "serve", "-p", "."]
+    }
+  }
+}
+```
+
+## Docker (all analyzers, zero host toolchains)
+
+```bash
+docker run --rm -v "$PWD:/work" ghcr.io/codellm-devkit/cocoa map -p /work
+```
+
+Includes the unreleased Go analyzer (built from source) and the Java jar workaround.
+Note: first Java analysis downloads a JDK into the project's `.cocoa/cache`
+(network required once per project).
+
+## Host toolchain notes
+
+- Java: cldk auto-manages the JDK; clean pip installs currently need the jar
+  workaround (python-sdk#236) — copy `codeanalyzer-2.4.1.jar` from the
+  codeanalyzer-java releases into cldk's `analysis/java/codeanalyzer/jar/` dir.
+- Go: put `codeanalyzer-go` on PATH or set `$CODEANALYZER_GO_BIN`.
+- helm/kubectl: optional; enable static rendering of charts/kustomize wiring.

test/test_plugin_assets.py

@@ -132,3 +132,24 @@ def test_docker_smoke_builds_and_maps():
         capture_output=True, text=True, timeout=1800,
     )
     assert res.returncode == 0, f"smoke failed:\n{res.stdout}\n{res.stderr}"
+
+
+def test_readme_carries_the_positioning_and_honest_status():
+    text = (ROOT / "README.md").read_text()
+    assert "Graphify indexes files" in text            # the pitch
+    assert "DERIVED-STATIC" in text and "INFERRED" in text
+    assert "docs/INSTALL.md" in text and "docs/COMPARISON.md" in text
+    assert "codeanalyzer-go" in text                   # honest prereq status
+
+
+def test_install_doc_covers_platforms_and_pypi_caveat():
+    text = (ROOT / "docs" / "INSTALL.md").read_text()
+    for platform in ("Claude Code", "Codex", "Cursor", "Docker"):
+        assert platform in text
+    assert "uvx --from git+" in text                   # pre-PyPI install path
+
+
+def test_comparison_is_provenance_led():
+    text = (ROOT / "docs" / "COMPARISON.md").read_text()
+    assert "graphify" in text.lower()
+    assert "AMBIGUOUS" in text and "DERIVED-STATIC" in text