Agent skill

Customer Support Agent

by mastra-ai in mastra-ai/mastra

Authoring playbook for building agents that triage and reply to customer messages — support tickets, email inquiries, chat questions, refund requests, or product issues.

Custom licenceAuto-check passedSales & Support

Install Customer Support Agent

skills CLI
$ npx skills add mastra-ai/mastra --skill customer-support-agent -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mastra-ai/mastra customer-support-agent --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/editor/src/ee/workspace/skills/customer-support-agent .claude/skills/customer-support-agent && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
customer-support-agent
GitHub stars
29k
Token cost
~2.2k tokens
SKILL.md length
569 words
Files
1
Skills in repo
44
Repo updated
First seen
Licence
Custom licence

At a glance

Authoring playbook for building agents that triage and reply to customer messages — support tickets, email inquiries, chat questions, refund requests, or product issues.

  • Works in 5 steps: The specific helpdesk/inbox tool… → A knowledge-base or policy search tool. → A billing / account-lookup tool if the… → …
  • Wants an agent that handles inbound customer questions
  • SKILL.md covers When to use, Agent identity template, Action boundary and System prompt template, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Customer Support Agent is an agent skill from mastra-ai/mastra. Authoring playbook for building agents that triage and reply to customer messages — support tickets, email inquiries, chat questions, refund requests, or product issues. Use this when the user wants an agent that handles inbound customer questions, drafts replies, escalates hard cases, summarizes tickets, or follows a support playbook.

Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Sales & Support, covering Customer support. The repository describes itself as: Mastra is the modern TypeScript framework for AI-powered applications and agents.

When your agent uses it

  • Wants an agent that handles inbound customer questions
  • Escalates hard cases
  • Summarizes tickets
  • Follows a support playbook

Example prompts

  • “/customer-support-agent”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. The specific helpdesk/inbox tool (Zendesk, Intercom, Front, Help Scout, Gmail, Outlook) — pick one.
  2. A knowledge-base or policy search tool.
  3. A billing / account-lookup tool if the agent handles billing.
  4. A refund/account-action tool only if the user explicitly wants the agent to take those actions.
  5. A workflow that posts an escalation to Slack or assigns to a human.

What it can do on your machine

Read from SKILL.md and the folder at commit fecbeda. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Customer Support Agent loads about 2.2k tokens when it runs. Until then it costs about 90 tokens; SKILL.md has 569 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~90
When it runs · the whole SKILL.md, loaded when a task matches
~2.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 569 words (~2,241 tokens).

“Pick this playbook when the user mentions: customer, support, ticket, help desk, inbox, reply, response, refund, complaint, issue, Zendesk, Intercom, Front, Help Scout, escalation, SLA, FAQ, or "answer my users".”

— opening of SKILL.md by mastra-ai, Custom licence
name
customer-support-agent

Read the full SKILL.md on GitHub

Files

Just SKILL.md in packages/editor/src/ee/workspace/skills/customer-support-agent of mastra-ai/mastra.

Open the folder on GitHubat commit fecbeda

Compare with similar skills

Customer Support Agent next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Customer Support Agent compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Customer Support Agent this skillmastra-ai/mastra29k—~2.2kAutomated safety check: PassCustom licence
Siftranknoperator/siftrank225—~2.9kAutomated safety check: PassMIT
Supporthaacked/dotfiles134—~2.9kAutomated safety check: PassNone
Add Agent Adaptersafedep/gryph172—~679Automated safety check: PassApache-2.0
Agent Support Matrixjazzyalex/agent-sessions895—~587Automated safety check: PassMIT
Company Brain Company QAtopoteretes/cognee32k—~750Automated safety check: NotesApache-2.0

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Categories

Questions about Customer Support Agent

What does Customer Support Agent do?

Authoring playbook for building agents that triage and reply to customer messages — support tickets, email inquiries, chat questions, refund requests, or product issues. Customer Support Agent is an agent skill from mastra-ai/mastra. Authoring playbook for building agents that triage and reply to customer messages — support tickets, email inquiries, chat questions, refund requests, or product issues.

When should I use Customer Support Agent?

Customer Support Agent fits situations like: wants an agent that handles inbound customer questions; escalates hard cases; summarizes tickets; follows a support playbook.

How do I install Customer Support Agent in Claude Code?

Run `npx skills add mastra-ai/mastra --skill customer-support-agent -a claude-code`. Or copy the skill folder (packages/editor/src/ee/workspace/skills/customer-support-agent in mastra-ai/mastra) into .claude/skills/customer-support-agent in your project. Claude Code loads it when a task matches its description.

How do I install Customer Support Agent in Codex?

Run `npx skills add mastra-ai/mastra --skill customer-support-agent -a codex`. Or copy the skill folder (packages/editor/src/ee/workspace/skills/customer-support-agent in mastra-ai/mastra) into .agents/skills/customer-support-agent in your project. Codex loads it when a task matches its description.

Can I use Customer Support Agent in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mastra-ai/mastra --skill customer-support-agent -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/customer-support-agent, .gemini/skills/customer-support-agent, .github/skills/customer-support-agent and .opencode/skills/customer-support-agent in your project.

What does Customer Support Agent need to run?

SKILL.md names no scripts, command-line tools or credentials: Customer Support Agent is instructions for the agent only.

Does Customer Support Agent access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Customer Support Agent safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Customer Support Agent use?

Customer Support Agent has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Customer Support Agent use?

About 2.2k tokens (SKILL.md is roughly 9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Customer Support Agent?

Skills that share tags, products or a category with Customer Support Agent: Siftrank (noperator/siftrank, 225 stars), Support (haacked/dotfiles, 134 stars), Add Agent Adapter (safedep/gryph, 172 stars) and Agent Support Matrix (jazzyalex/agent-sessions, 895 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Customer Support Agent?

mastra-ai (a GitHub organization) maintains it in mastra-ai/mastra, which has 28,674 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on October 10, 2026.

Source: mastra-ai/mastra on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.