Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/yarrasys/kdbx/agents-mdgit clone --depth 1 https://github.com/yarrasys/kdbxWrote 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/yarrasys/kdbx/agents-md)<a href="https://agentmods.dev/instructions/yarrasys/kdbx/agents-md"><img src="https://agentmods.dev/badge/instructions/yarrasys/kdbx/agents-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 | $0.03066 | $0.03066 |
| Opus 5 | $0.01533 | $0.01533 |
| Sonnet 5 | $0.00613 | $0.00613 |
| Haiku 4.5 | $0.00307 | $0.00307 |
Grade B, and why
kdbx AGENTS.md scanned grade B with 2 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 3d 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.
Asks the agent to reveal its instructionsmediumSystem prompt leakage
Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.
- Secret intake is stdin, `--from-env`, or an interactive no-echo prompt. **Never argv.** Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **Every install route is live**: the curl installer, `go install`, `brew install How it starts
The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Canonical guidance for anyone — human or AI — working on this repository.
CLAUDE.mdis a symlink to this file so there is one source of truth.Working with kdbx (using the CLI) is documented in README.md. This file is about changing it.
What this is
github.com/yarrasys/kdbx — a single Go binary (MIT) that stores a project's secrets in
per-project, per-environment KeePassXC vaults and injects them into child processes without
ever printing them. It is a port of the Python kdbx skill in
yarrasys/extensions, which
is now the frozen reference implementation.
Current status — read this first
Released and consumed. The repo is public at https://github.com/yarrasys/kdbx, CI is green on Linux, macOS and Windows, and the current release is v0.1.2. As of 2026-07-30:
- 19 packages, full suite green under
-race, cross-compiles to darwin/linux/windows × amd64/arm64. 8 CLI-contract scenarios pass. - 15 commands:
init set get list delete mv run export import check envs rekey guard mcp completion.install-launcherwas removed — the binary is its own launcher. - Vaults are standard KDBX4 (Argon2, key-file-only), so
keepassxc-cliand the KeePassXC desktop app read Go-written vaults directly. The Python↔Go parity harness that verified the original port has been retired now that the Python reference is no longer a consumer. golangci-lintv2 runs clean locally and in CI.mainis protected: thelintand three-OStestchecks are required (admins may still push directly).- Every install route is live: the curl installer,
go install,brew install yarrasys/tap/kdbx(v0.1.1) andghcr.io/yarrasys/kdbx(v0.1.2). Releases ship six archives plusSHA256SUMSand a keyless cosign signature — see SECURITY.md. - The consuming change has landed:
yarrasys/extensionsmerged the skill-and-plugin switch to the binary in PR #36, freezing its Python implementation.
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.
- 3d ago First seen · 191 lines · 3,066 tokens per session scan B d5f935c4e996
kdbx AGENTS.md is an instructions file published in the GitHub repository yarrasys/kdbx (4 stars, last pushed 14d ago), licensed MIT. It adds 3,066 tokens to every session, about $0.0153 per session on Opus 5. A static security scan graded it B with 2 findings (asks the agent to reveal its instructions, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
kprun CLAUDE.md
Instructions for numikel/kprun, covering claude.md, superpowers workflow, model tier mapping, build and development and development build.
ollama CLAUDE.md
Claude Code instructions for ollama/ollama: See AGENTS.md for the shared agent instructions for this repository.
cli AGENTS.md
Instructions for planetscale/cli, covering planetscale cli — agent guide, public repository safety, concepts, flag placement and correct.
azure-sdk-for-go go-code.instructions.md
Instructions for Azure/azure-sdk-for-go: All code should follow the guidelines from the Azure Go SDK Guidelines. This document is a summary of the most important guidelines to follow when contributing to the Azure Go SDK.
gorest AGENTS.md
Instructions for pilinux/gorest, covering agents.md, project overview, build and run commands, build and tidy dependencies.
chatgpt-cli CLAUDE.md
Instructions for kardolus/chatgpt-cli, covering chatgpt-cli — release runbook, prerequisites, 1. cut the release, 2. publish the github release + binaries and 3. update the homebrew tap.