What is ag-bash AGENTS.md?

Repository instructions for ag-bash, a pnpm monorepo—a single code repository containing several related packages—including a shell engine, an MCP server, and a terminal interface.

They guide work across the ag-bash packages, including its command parser, execution pipeline, sandboxing, streaming output, agent runtime, and test utilities.

They give coding agents the project’s structure, architecture, build commands, testing conventions, and important version-specific rules.

How sairam0424/ag-bash configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to sairam0424/ag-bash. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/sairam0424/ag-bash/develop/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/sairam0424/ag-bash

Made for: Codex, OpenCode.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/sairam0424/ag-bash/agents-md/github.svg)](https://agentmods.dev/instructions/sairam0424/ag-bash/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/sairam0424/ag-bash/agents-md"><img src="https://agentmods.dev/badge/instructions/sairam0424/ag-bash/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/sairam0424/ag-bash/agents-md"><img src="https://agentmods.dev/badge/instructions/sairam0424/ag-bash/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,259 This file is loaded in full into every session.

When invoked 2,259 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.02259	$0.02259
Opus 5.5	$0.00904	$0.00904
Sonnet 5.5	$0.00452	$0.00452
Haiku 4.5	$0.00226	$0.00226

Measured 1mo ago against content hash f6a0266b4d43, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ag-bash 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 1mo 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.

AGENTS.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Architecture

Ag-Bash is a pnpm monorepo (v6.0.0) with three packages: @ag-bash/bash (core shell engine), @ag-bash/mcp-server (MCP protocol server), and @ag-bash/agent-bridge (terminal UI bridge).

v6.0.0 export paths (in addition to the main @ag-bash/bash entry):

@ag-bash/bash/agent-runtime — RunLoop for autonomous agent execution
@ag-bash/bash/testing — Test utilities (createTestBash, assertSuccess, assertFails)

Core pipeline: Input Script → ExecutionPipeline [Normalize → Parse (src/parser/lexer/) → Transform → Sandbox → Interpret (src/interpreter/) → Persist] → BashExecResult

New in v6.0.0:

src/parser/lexer/ — Tokenization layer in parser subdirectory
src/agentic/toolbox/ — Builtin command implementations (BashToolbox) in agentic subdirectory
src/execution/ — ExecutionPipeline (sole engine), stages, and DestructiveStage
src/streaming/ — StreamingExecutor and true incremental output
bash.fork() / bash.speculate() — Copy-on-write branching for agentic speculation
bash.execStream() — AsyncGenerator-based streaming output

Key architectural patterns:

ServiceContainer DI (v3.0 breaking change, v6.0.0 registry pattern): All services are per-Bash instance via createDefaultServices(). No singletons except DefenseInDepthBox (security necessity). Multiple Bash instances share zero mutable state. The container uses lazy initialization with a registry pattern (2 eager: astCache + sharedBus).
BashHost interface: Typed command dispatch for all builtins via the BashHost interface.
AsyncDisposable: Bash implements AsyncDisposable for deterministic resource cleanup.
ServiceContainer registry in src/services/: ASTCache, SharedStateBus, AgentManager, SessionManager, TaskManager, TeamManager, WorktreeManager, AgentMemory (now persistent across sessions), McpClient, Orchestrator, LSPManager, GitTracker, CronScheduler, PermissionManager.
Pluggable filesystems: InMemoryFs, OverlayFs (CoW), ReadWriteFs, MountableFs — all gated by resolveAndValidate().
WASM runtimes: CPython and QuickJS sandboxed via SharedStateBus bridge (opt-in).

Read the full file on GitHub · 151 lines

Changes

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.

1mo ago Changed f6a0266b4d43
2mo ago First seen · 151 lines · 2,259 tokens per session scan A e435a03259be

Subscribe to this mod's changes

ag-bash AGENTS.md is an instructions file published in the GitHub repository sairam0424/ag-bash (1 stars, last pushed 2d ago), licensed Apache-2.0. It adds 2,259 tokens to every session, about $0.0090 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 2026-08-30.

agentic-workflows ai-agents bash-shell mcp-server observability sandboxing

ag-bash AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ag-bash AGENTS.mdsairam0424/ag-bash	Instructions file	1	2d ago	Apache-2.0	A	2,259	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

ag-bash: Instructions file for Codex