intelligent-terminal: Instructions file for Codex

AGENTS.md

intelligent-terminal AGENTS.md is an instructions file for Codex, OpenCode from microsoft/intelligent-terminal. It costs 2,026 tokens per session, scanned A, original, MIT.

Repository guidance for Intelligent Terminal, a Windows Terminal fork with built-in AI-agent workflows. It explains the system structure, supported agents, settings, and important files.

In plain words
What is it for?
Use it when developing or debugging Intelligent Terminal, its Rust agent coordinator, terminal controls, communication channels, or session tools.
Why use it?
It gives coding agents the project context they need before changing the code, reducing misunderstandings about how the terminal and agent processes connect.

Instructions file for CodexOpenCode ✓ vendor

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Codex; mentions OpenCode.

This is microsoft/intelligent-terminal's own configuration. It tells Codex and OpenCode how to work on intelligent-terminal itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything intelligent-terminal configures →

About the project

Intelligent Terminal is an experimental fork of Windows Terminal that adds native support for AI agents through the Agent Client Protocol. It is for Windows users who want to manage compatible agent command-line tools alongside terminal tabs, profiles, themes, shells, and keyboard shortcuts, and the catalogue entries provide instructions, skills, hooks, and a plugin for working with it.

microsoft/intelligent-terminal · 2,074 stars · on GitHub · devblogs.microsoft.com

Reuse

Borrowing it

Nothing to install: this file belongs to microsoft/intelligent-terminal. 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/microsoft/intelligent-terminal/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/microsoft/intelligent-terminal

Made for: Codex, OpenCode.

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Per session 2,026 This file is loaded in full into every session.
When invoked 2,026 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02026 $0.02026
Opus 5.5 $0.00810 $0.00810
Sonnet 5.5 $0.00405 $0.00405
Haiku 4.5 $0.00203 $0.00203

Measured 3d ago against content hash fb942747cda0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

intelligent-terminal 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 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.

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 · 203 lines

How it starts

The opening of the file, as written. The whole thing — 203 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Intelligent Terminal

Intelligent Terminal is a Windows Terminal fork that adds first-class AI agent workflows. The inherited Windows Terminal build, architecture, and C++ conventions are documented in .github/copilot-instructions.md; this file contains only the fork-specific context.

Architecture

WindowsTerminal.exe
  |-- TerminalProtocolComServer (COM, discovered through WT_COM_CLSID)
  |-- SharedWta --> wta-master --> agent CLI pool (ACP over stdio)
  +-- one wta-helper pane per tab
                       |
                       +-- helper/master ACP over a named pipe
                       +-- session-scoped MCP tools

Agent or human CLI --> wta/wtcli --> COM IProtocolServer --> Windows Terminal
  • WTA (tools/wta/) is the Rust orchestrator.
  • ACP means Agent Client Protocol. wta-master owns a pool of agent CLI processes keyed by agent identity, execution source, and command; helpers using the same key share one process and multiplex sessions through it. Installed, policy-allowed native host agents other than Gemini and Antigravity initialize in the background at master startup and remain resident. Gemini and Antigravity are excluded from automatic sidebar discovery; explicit selections initialize on demand.
  • WT Protocol is the terminal-control boundary. wtcli.exe activates IProtocolServer through the package COM registration.
  • Session MCP exposes run_command_in_current_shell, create_workspace, delegate_task_in_new_workspace, and request_user_input. It routes requests to the owning helper and never executes terminal actions itself.
  • Agent panes are ordinary ConptyConnection panes hosting wta-helper; C++ does not speak ACP.

See doc/specs/Multi-window-agent-pane.md for the detailed lifecycle and tools/wta/AGENTS.md for WTA-specific implementation rules.

Supported agents and settings

Built-in ACP and delegation providers are Copilot, Claude, Codex, Gemini, and OpenCode. Custom providers use a custom:<name> ID plus the matching custom command setting.

Read the full file on GitHub · 203 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.

  1. 3d ago Changed · +5 tokens per session fb942747cda0
  2. 12d ago Changed · +7 lines · +89 tokens per session 805851b90ad7
  3. 13d ago Changed · +1 lines · +15 tokens per session 5576fe4e689d
  4. 23d ago Changed · +2 lines · +18 tokens per session b4351c20f8c5
  5. 24d ago Changed · +2 lines · +26 tokens per session e792d89489ff
  6. 1mo ago Changed · +6 lines · +96 tokens per session bffa03a45a1b
  7. 1mo ago Changed · +4 tokens per session 58d406cc9eec
  8. 1mo ago First seen · 185 lines · 1,773 tokens per session scan A 4c056a72d19a

Subscribe to this mod's changes

intelligent-terminal AGENTS.md is an instructions file published in the GitHub repository microsoft/intelligent-terminal (2,074 stars, last pushed today), licensed MIT. It adds 2,026 tokens to every session, about $0.0081 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.

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