Borrowing it
Nothing to install: this file belongs to slayer/gcon. 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/slayer/gcon/master/CLAUDE.mdgit clone --depth 1 https://github.com/slayer/gconWrote 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/slayer/gcon/claude-md)<a href="https://agentmods.dev/instructions/slayer/gcon/claude-md"><img src="https://agentmods.dev/badge/instructions/slayer/gcon/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/slayer/gcon/claude-md"><img src="https://agentmods.dev/badge/instructions/slayer/gcon/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 | $0.04490 | $0.04490 |
| Opus 5.5 | $0.01796 | $0.01796 |
| Sonnet 5.5 | $0.00898 | $0.00898 |
| Haiku 4.5 | $0.00449 | $0.00449 |
Grade A, and why
gcon 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 13d 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 — 397 lines — stays where its author put it; the contents beside it link to each section on GitHub.
gcon - Terminal UI for Google Cloud Platform
Project Overview
A terminal-based user interface for managing Google Cloud Platform resources, built with Go and Bubble Tea.
Tech Stack
- Language: Go 1.26+ (toolchain pinned via
mise.toml) - TUI Framework: Bubble Tea (Elm-inspired architecture)
- Styling: Lip Gloss
- Charts: ntcharts (braille time series)
- GCP SDK:
cloud.google.com/go+google.golang.org/api - Auth: Application Default Credentials (ADC)
- Testing: Go's built-in testing package
- Mocking with interfaces and test implementations
- use
testifyfor assertions - use table-driven tests if applicable
- Linting: golangci-lint v2.12+ with 32 enabled linters
- Comprehensive error handling, security, and code quality checks
- Bubble Tea-specific complexity allowances
Project Structure
.
├── cmd/
│ └── gcon/ # Main entry point
│ └── main.go
├── internal/
│ ├── gcp/ # GCP API clients & abstractions
│ │ ├── client.go # Base client with auth (Cloud Resource Manager)
│ │ ├── projects.go # Project listing
│ │ ├── compute.go # Compute Engine (instances start/stop/reset)
│ │ └── sql.go # Cloud SQL (instances, databases, backups)
│ ├── ui/
│ │ ├── app.go # Main application model & view routing
│ │ ├── keys.go # Global key bindings
│ │ ├── styles.go # Lip Gloss styles (GCP color palette)
│ │ ├── messages.go # Shared message types
│ │ ├── views/ # Screen components
│ │ │ ├── projects.go # Project selector view
│ │ │ └── instances.go # Compute Engine instances view
│ │ └── components/ # Reusable UI widgets
│ │ ├── spinner.go # Loading spinner
│ │ ├── statusbar.go # Status bar widget
│ │ └── metricchart/ # Time series charts (ntcharts wrapper)
│ ├── config/ # Configuration management (planned)
│ └── cache/ # Local caching layer (planned)
├── go.mod
├── go.sum
├── Makefile
└── CLAUDE.md
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.
- 13d ago First seen · 397 lines · 4,490 tokens per session scan A 86a1d9f56beb
gcon CLAUDE.md is an instructions file published in the GitHub repository slayer/gcon (8 stars, last pushed 16d ago), licensed MIT. It adds 4,490 tokens to every session, about $0.0180 per session on Opus 5.5. 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 2026-10-02.
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