chat-directline

chat-directline is a skill for Claude Code from microsoft/skills-for-copilot-studio. It costs 35 tokens per session (790 once invoked), scanned A, original, MIT.

A command-line skill for sending one message to a published Microsoft Copilot Studio agent through DirectLine v3, a messaging interface for connecting applications to conversational agents. It supports agents with no authentication or with manually supplied authentication.

In plain words
What is it for?
Use it to send an utterance, or user message, and read the agent’s text, suggested actions, and Adaptive Cards. It requires a token endpoint URL or a DirectLine secret.
Why use it?
It avoids building the DirectLine request and response handling yourself when you need to try an agent from the command line.

Skill for Claude Code ✓ vendor

Written for Claude Code: allowed-tools in frontmatter. Also seen: agent in frontmatter.

Part of the copilot-studio plugin — 31 skills, 4 agents, 1 hook shipped together

Good fit Use it to send an utterance, or user message, and read the agent’s text, suggested actions, and Adaptive Cards. It requires a token endpoint URL or a DirectLine secret.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/microsoft/skills-for-copilot-studio/chat-directline
About the project

Skills for Copilot Studio is a plugin for authoring, testing, and troubleshooting standard Microsoft Copilot Studio agents as YAML files from a terminal or editor. It is intended for users of Claude Code, GitHub Copilot CLI, and VS Code who work with Copilot Studio agents. The catalogue add-ons are the plugin's skills, agents, hook, and plugin definition.

microsoft/skills-for-copilot-studio · 432 stars · on GitHub

Install

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.

Any agent
npx skills add microsoft/skills-for-copilot-studio --skill chat-directline
Clone the repo
git clone --depth 1 https://github.com/microsoft/skills-for-copilot-studio

Made for: Claude Code.

Or install copilot-studio, the plugin that ships this one along with the rest of its 31 skills, 4 agents, 1 hook.

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.

agentmods badge for chat-directline

README.md
[![agentmods](https://agentmods.dev/badge/skills/microsoft/skills-for-copilot-studio/chat-directline.svg)](https://agentmods.dev/skills/microsoft/skills-for-copilot-studio/chat-directline)
Your own site
<a href="https://agentmods.dev/skills/microsoft/skills-for-copilot-studio/chat-directline"><img src="https://agentmods.dev/badge/skills/microsoft/skills-for-copilot-studio/chat-directline.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 790 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00035 $0.00790
Opus 5 $0.00017 $0.00395
Sonnet 5 $0.00007 $0.00158
Haiku 4.5 $0.00003 $0.00079

Measured 8d ago against content hash 91372922964e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

chat-directline 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 8d 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.

skills/chat-directline/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chat via DirectLine

Send a single utterance to a published agent via the DirectLine v3 REST API. Use this for agents with no authentication (authenticationmode 1) or manual authentication (authenticationmode 3).

Instructions

  1. Run the script with --token-endpoint (from detect-mode output) and the utterance from $ARGUMENTS:

    node ${CLAUDE_SKILL_DIR}/../../scripts/chat-with-agent.bundle.js \
      --token-endpoint "<tokenEndpoint>" "<utterance>"
    

    If the user provided a DirectLine secret instead:

    node ${CLAUDE_SKILL_DIR}/../../scripts/chat-with-agent.bundle.js \
      --directline-secret "<secret>" "<utterance>"
    
  2. Parse the JSON output from stdout.

Normal response (status: "ok")

{
  "status": "ok",
  "protocol": "directline",
  "utterance": "hello",
  "conversation_id": "abc123-XYZ",
  "directline_token": "eyJ...",
  "watermark": "3",
  "start_activities": [ ... ],
  "activities": [ ... ]
}

Display the agent's response from the activities array:

  • Text: activities where type === "message" — show text
  • Suggested actions: suggestedActions.actions array
  • Adaptive cards: attachments with contentType === "application/vnd.microsoft.card.adaptive"

Save conversation_id, directline_token, and watermark — needed for follow-ups.

Sign-in required (status: "signin_required")

The agent requires the user to authenticate (manual auth agents):

{
  "status": "signin_required",
  "protocol": "directline",
  "signin_url": "https://...",
  "resume_command": "...",
  "followup_command": "..."
}
  1. Show the signin_url to the user, ask for the validation code
  2. Send the code: node ${CLAUDE_SKILL_DIR}/../../scripts/chat-with-agent.bundle.js <resume_command with code substituted>
  3. Re-send the utterance: node ${CLAUDE_SKILL_DIR}/../../scripts/chat-with-agent.bundle.js <followup_command>

Use resume_command and followup_command exactly as given.

Read the full file on GitHub · 93 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. 8d ago First seen · 93 lines · 35 tokens per session scan A 91372922964e

Subscribe to this mod's changes

chat-directline is a skill published in the GitHub repository microsoft/skills-for-copilot-studio (432 stars, last pushed 5d ago), licensed MIT. It adds 35 tokens to every session and 790 once invoked, about $0.0002 per session on Opus 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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