Borrowing it
Nothing to install: this file belongs to cdknorow/coral. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/cdknorow/coral/main/CLAUDE.mdgit clone --depth 1 https://github.com/cdknorow/coralWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/cdknorow/coral/claude-md)<a href="https://agentmods.dev/instructions/cdknorow/coral/claude-md"><img src="https://agentmods.dev/badge/instructions/cdknorow/coral/claude-md.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01898 | $0.01898 |
| Opus 5 | $0.00949 | $0.00949 |
| Sonnet 5 | $0.00380 | $0.00380 |
| Haiku 4.5 | $0.00190 | $0.00190 |
Grade A, and why
coral CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md - Coral Go
Mission
The Go codebase (coral-go/) is the primary implementation of Coral. The coral-python/ is a legacy reference that is no longer authoritative.
RULES:
- The Go codebase is the source of truth. Improve it freely without deferring to Python patterns.
- Only modify code under
coral-go/andtests/.
Testing
Go Unit Tests
cd coral-go && go test ./...
Legacy Parity Tools (historical reference)
These tools were used during the Python-to-Go migration and may still be useful for comparison:
# Parity harness (requires both Python and Go servers)
python tests/parity_harness.py
# DB compare tool
cd coral-go && go build -o db-compare ./cmd/db-compare/
./db-compare <python-db> <go-db> [board-py-db] [board-go-db]
Project Structure
coral/ # Legacy Python implementation (historical reference only)
coral-go/ # Primary Go implementation
cmd/ # CLI entry points (coral, launch-coral, coral-board, db-compare)
internal/ # Core packages
agent/ # Agent implementations (claude, gemini)
background/ # Background services (git poller, indexer, scheduler, etc.)
board/ # Message board store
config/ # Configuration
jsonl/ # JSONL log reader
license/ # License checking
pulse/ # Pulse event parser
ptymanager/ # PTY/tmux session management
server/ # HTTP server, routes, frontend assets
store/ # SQLite storage layer
tmux/ # Tmux client
go.mod / go.sum # Go module dependencies
tests/ # Parity test harness
parity_harness.py # Main harness — starts both servers, runs scenarios, compares DBs
parity/
test_scenarios.py # API scenario tests (tags, settings, webhooks, board, etc.)
Casks/ # Homebrew Cask definition
Formula/ # Homebrew Formula
scripts/ # macOS build script
icons/ # App icons and screenshots
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 184 lines · 1,898 tokens per session scan A eb4a489de275
coral CLAUDE.md is an instructions file published in the GitHub repository cdknorow/coral (34 stars, last pushed 11d ago), licensed Apache-2.0. It adds 1,898 tokens to every session, about $0.0095 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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