Agent Deck is a terminal session manager that lets developers monitor and switch between multiple AI coding-agent sessions from one text interface. It helps people organize agents working across projects with groups, search, forking, Git worktrees, cost tracking, and a phone-controlled conductor. The catalogue entries extend its use with skills, commands, and a plugin.
Borrowing it
Nothing to install: this file belongs to asheshgoplani/agent-deck. 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/asheshgoplani/agent-deck/main/AGENTS.mdgit clone --depth 1 https://github.com/asheshgoplani/agent-deckWrote 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/asheshgoplani/agent-deck/agents-md)<a href="https://agentmods.dev/instructions/asheshgoplani/agent-deck/agents-md"><img src="https://agentmods.dev/badge/instructions/asheshgoplani/agent-deck/agents-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/asheshgoplani/agent-deck/agents-md"><img src="https://agentmods.dev/badge/instructions/asheshgoplani/agent-deck/agents-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 | $0.02705 | $0.02705 |
| Opus 5.5 | $0.01082 | $0.01082 |
| Sonnet 5.5 | $0.00541 | $0.00541 |
| Haiku 4.5 | $0.00270 | $0.00270 |
Grade A, and why
agent-deck AGENTS.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 yesterday.
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 — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
For coding agents (Codex, Cursor, OpenCode, Gemini, Claude Code...) in this repo. Humans: CONTRIBUTING.md says the same at more length.
What this is
Agent Deck is a terminal session manager for AI coding agents (Claude Code, Codex,
Gemini, OpenCode and others). Each session runs in tmux; one Go binary, agent-deck,
provides the TUI (Bubble Tea), the CLI, a web UI and the conductor.
Safety rule: tests never touch a real HOME or your tmux server
The tests start real tmux servers and processes and write agent-deck state. Run
go test only inside a container, never on your host. That also rules out make test,
make ci and the lefthook pre-push hook on a host: all three run go test.
# Gates, PR body checks and tests. On a host it skips go test and prints the docker run command.
FULL_TESTS=1 skills/agent-deck/scripts/contributing/self-check.sh pr-body.md
# CI's Go checks (gofmt, build, vet, golangci-lint, race tests) in throwaway containers.
make verify-docker
make verify-docker VERIFY_ARGS="--stages test --pkgs ./internal/session/..."
self-check.sh counts as inside a container when /.dockerenv or /run/.containerenv
exists or AGENTDECK_TEST_CONTAINER=1 is set. Set that variable only when it is true.
What guards the code if a test still runs somewhere it should not:
- Packages with a
testmain_test.go(not every package has one) call, inTestMain,testutil.IsolateHome()(temp HOME, clearedXDG_*and tool config dirs such asCLAUDE_CONFIG_DIR,AGENTDECK_PROFILE=_test) andtestutil.IsolateTmuxSocket()(unsetsTMUX/TMUX_PANE, privateTMUX_TMPDIR).internal/testutil/testmain_audit_test.gofails anytestmain_test.godefiningTestMainthat skips them. internal/sandboxguardpanics when a test binary resolves a path under the real home (passwd home or the HOME the binary started with) and names the env var it came through.internal/tmuxpanics before spawning tmux when a test binary would reach your default tmux socket (test_isolation_guard.go,default_socket_guard.go). There is no opt-out.
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.
- yesterday Changed · +1 lines · +15 tokens per session 5438c47a66e1
- 2d ago First seen · 157 lines · 2,690 tokens per session scan A 3bdc764c95f7
agent-deck AGENTS.md is an instructions file published in the GitHub repository asheshgoplani/agent-deck (1,165 stars, last pushed yesterday), licensed MIT. It adds 2,705 tokens to every session, about $0.0108 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 2026-10-25.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.