Official agent skill

Client Letter

by anthropics in anthropics/claude-for-legal

Routine client correspondence from templates — appointment confirmations, document requests, brief "we filed it" updates.

OfficialApache-2.0Auto-check passedWriting & Content

Install Client Letter

skills CLI
$ npx skills add anthropics/claude-for-legal --skill client-letter -a claude-code

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

GitHub CLI
$ gh skill install anthropics/claude-for-legal client-letter --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/anthropics/claude-for-legal.git skills-src && mkdir -p .claude/skills && cp -r skills-src/legal-clinic/skills/client-letter .claude/skills/client-letter && 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
client-letter
GitHub stars
9.6k
Used in
3 other repos
Token cost
~2.1k tokens
SKILL.md length
818 words
Files
1
Skills in repo
147
Repo updated
First seen
Licence
Apache-2.0

At a glance

Routine client correspondence from templates — appointment confirmations, document requests, brief "we filed it" updates.

  • Works in 4 steps: Load… → Use the templates and workflow below. → Match type to template. Plain-language… → …
  • A student needs to send routine correspondence
  • SKILL.md covers Purpose, Load context, Pedagogy check and Sign-off and student-attorney…, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Client Letter is an agent skill from anthropics/claude-for-legal, published by the product's own GitHub organization. Routine client correspondence from templates — appointment confirmations, document requests, brief "we filed it" updates. Plain language, required elements, supervision routing. NOT substantive advice. Use when a student needs to send routine correspondence, an appointment confirmation, a document request letter, or a brief status note to a client.

Its SKILL.md is about 2.1k 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 Writing & Content, covering Plain language and style rules. The repository describes itself as: A suite of plugins for legal workflows. The licence is Apache-2.0.

When your agent uses it

  • A student needs to send routine correspondence
  • An appointment confirmation
  • A document request letter
  • A brief status note to a client

Example prompts

  • “we filed it”
  • “/client-letter”

Workflow steps

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

  1. Load ~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md → plain-language standards, supervision style, clinic contact info.
  2. Use the templates and workflow below.
  3. Match type to template. Plain-language check.
  4. Output with AI-assisted label, supervision routing.

What it can do on your machine

Read from SKILL.md and the folder at commit 4a6c651. 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 (its code samples are markdown).

    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

Client Letter loads about 2.1k tokens when it runs. Until then it costs about 91 tokens; SKILL.md has 818 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~91
When it runs · the whole SKILL.md, loaded when a task matches
~2.1k

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

The full file from anthropics/claude-for-legal at commit 4a6c651, republished under its Apache-2.0 licence (© anthropics). 818 words, ~2,084 tokens.

Download SKILL.mdSave it as .claude/skills/client-letter/SKILL.md (or your agent's skills folder).
name
client-letter
description
Routine client correspondence from templates — appointment confirmations, document requests, brief "we filed it" updates. Plain language, required elements, supervision routing. NOT substantive advice. Use when a student needs to send routine correspondence, an appointment confirmation, a document request letter, or a brief status note to a client.
argument-hint
[appointment | doc-request | update]

/client-letter

  1. Load ~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md → plain-language standards, supervision style, clinic contact info.
  2. Use the templates and workflow below.
  3. Match type to template. Plain-language check.
  4. Output with AI-assisted label, supervision routing.

Scope: routine only. Substantive advice → /status client or a conversation with the professor.

/legal-clinic:client-letter appointment
/legal-clinic:client-letter doc-request

Client Letter: Routine Correspondence

Purpose

Clinics send a lot of routine correspondence: "your appointment is Tuesday at 2pm," "please bring your lease," "we filed your answer." This skill handles those from templates so students aren't typing the same letter every week.

Scope: routine only. Substantive advice, bad news, case strategy — those are /status client or a conversation, not a template letter.

Load context

~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md → plain-language standards, supervision style, clinic contact info.

Pedagogy check

Read the supervisor guide for this practice area at ~/.claude/plugins/config/claude-for-legal/legal-clinic/guides/<practice-area>.md. Check the pedagogy_posture setting:

  • guide (default): Produce the structure and the checklist (required elements, plain-language targets, sign-off per student practice rule). Ask the student to draft each section. Give feedback on their draft (register, reading level, required elements, what they missed). Offer to fill a section only when the student has tried once.
  • assist: Produce the letter. Flag items for student review. The student edits and learns by reviewing.
  • teach: Don't produce the letter. Ask the student to draft it. Give feedback. Ask leading questions when they're stuck. Only show a model paragraph after two attempts, and only the section they're stuck on. Track what they got right and wrong so the supervisor can see progress.

If no guide exists, use guide. If the guide exists but doesn't set a posture, use guide.

Whatever the posture, the output always includes: "Pedagogy mode: [assist/guide/teach] — set by your supervisor's guide. This means I [description of what the student did vs what the skill did]."

Sign-off and student-attorney disclosure

Check your jurisdiction's student practice rule for required disclosure language in letters signed by a law student. Some jurisdictions require specific forms; most require that the student identify themselves as a law student / certified legal intern and identify the supervising attorney. The templates below use a generic form — conform the sign-off to your rule before sending.

Letter types

Review label goes OUTSIDE the letter. The [AI-ASSISTED DRAFT — requires review per plugin config supervision step] tag is a note to the student, not part of the letter body. Place it above the rendered template (or in a header the student deletes before sending), never inside the fenced letter content. If it ends up in the client-facing copy, the skill has failed.

Appointment confirmation

Review label for the student (not for the client — strip before sending): [AI-ASSISTED DRAFT — requires review per plugin config supervision step]

markdown
Dear [Client],

This confirms your appointment with [Clinic name]:

**Date:** [date]
**Time:** [time]
**Where:** [address / room / or "by phone at [number]"]
**With:** [student name]

**Please bring:** [documents needed — from case notes or leave as prompt
for student to fill]

If you need to reschedule, call us at [clinic phone] at least 24 hours before.

[Student name]
Law Student, Certified Legal Intern
Under the supervision of [Supervising Attorney]
[Clinic name] | [phone] | [hours]
Document request

Review label for the student (not for the client — strip before sending): [AI-ASSISTED DRAFT — requires review per plugin config supervision step]

markdown
Dear [Client],

To move your case forward, we need the following documents from you:

- [Document 1 — e.g., "Your lease agreement"]
- [Document 2 — e.g., "The notice you received from your landlord"]
- [Document 3]

**How to get them to us:** [drop off at clinic / email to [address] / bring
to next appointment]

**Please send by:** [date — if there's a deadline, say why: "We need these
by [date] so we can file your answer before the court deadline."]

If you don't have some of these or aren't sure what we mean, call us at
[clinic phone] and we can help.

[Student name]
Law Student, Certified Legal Intern
Under the supervision of [Supervising Attorney]
[Clinic name] | [phone] | [hours]
Brief status update

For routine "we filed it" / "we're waiting" updates. (Fuller status updates → /status client.)

Review label for the student (not for the client — strip before sending): [AI-ASSISTED DRAFT — requires review per plugin config supervision step]

markdown
Dear [Client],

Quick update: [one-line what happened — "We filed your answer with the court
on [date]" / "We sent the demand letter to your landlord on [date]"].

**What's next:** [one line — "We're waiting for their response" / "The court
will schedule a hearing and let us know the date"].

You don't need to do anything right now. We'll let you know when we do.

[Student name]
Law Student, Certified Legal Intern
Under the supervision of [Supervising Attorney]
[Clinic name] | [phone] | [hours]
Show full SKILL.md (321 more words)Show less

Before sending

Sending a letter to a client is a consequential action. This plugin's gate is the supervision workflow described in ## Supervision style in ~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md, reinforced by the Part 0 role check that confirms a licensed supervising attorney owns the clinic setup. That gate still holds: every letter clears review before it leaves the clinic.

Before sending any of the letters above, confirm:

  1. The draft has been reviewed per the supervision protocol in ~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md (queue / flag / lighter-touch).
  2. All internal review labels ([AI-ASSISTED DRAFT], any [VERIFY] or [FACT NEEDED] tags) have been removed from the client-facing copy.
  3. The sign-off conforms to your jurisdiction's student practice rule for law-student-signed correspondence.

This is a student draft for supervising-attorney review, not a final letter. Sending it has legal consequences for the client and may constitute legal advice or communication on the client's behalf. A licensed supervising attorney reviews, edits, and signs off before the letter leaves the clinic. Do not send without supervisor approval.

Plain-language check

Per ~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md standards. Short sentences. No jargon. Reading level target enforced. If a template above includes a legal term the client might not know, explain it the first time: "We filed your 'answer' — that's the document that tells the court your side of the story."

Supervision routing

Per ~/.claude/plugins/config/claude-for-legal/legal-clinic/CLAUDE.md. Routine correspondence may or may not be a flag trigger depending on the supervision style the professor chose. If lighter-touch: these go out after student review without a queue step. If formal queue: even routine letters queue.

What this skill does NOT do

  • Substantive advice. If the letter would say "here's what I think about your case" or "here's what you should do," that's not routine — that's /status client or a conversation with the professor first.
  • Bad news. Case closing, adverse ruling, can't-help — those need thought, not a template. Flag for professor.
  • Anything to opposing counsel or a court. Different audience, different skill (/draft or /status court).

© anthropics, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in legal-clinic/skills/client-letter of anthropics/claude-for-legal.

Open the folder on GitHubat commit 4a6c651

Used in 3 other repositories

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in anthropics/claude-for-legal, which our catalogue first saw on October 7, 2026.

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Questions about Client Letter

What does Client Letter do?

Routine client correspondence from templates — appointment confirmations, document requests, brief "we filed it" updates. Client Letter is an agent skill from anthropics/claude-for-legal, published by the product's own GitHub organization. Routine client correspondence from templates — appointment confirmations, document requests, brief "we filed it" updates.

When should I use Client Letter?

Client Letter fits situations like: A student needs to send routine correspondence; an appointment confirmation; A document request letter; A brief status note to a client.

How do I install Client Letter in Claude Code?

Run `npx skills add anthropics/claude-for-legal --skill client-letter -a claude-code`. Or copy the skill folder (legal-clinic/skills/client-letter in anthropics/claude-for-legal) into .claude/skills/client-letter in your project. Claude Code loads it when a task matches its description.

How do I install Client Letter in Codex?

Run `npx skills add anthropics/claude-for-legal --skill client-letter -a codex`. Or copy the skill folder (legal-clinic/skills/client-letter in anthropics/claude-for-legal) into .agents/skills/client-letter in your project. Codex loads it when a task matches its description.

Can I use Client Letter 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 anthropics/claude-for-legal --skill client-letter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/client-letter, .gemini/skills/client-letter, .github/skills/client-letter and .opencode/skills/client-letter in your project.

What does Client Letter need to run?

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

Does Client Letter 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 Client Letter 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 Client Letter use?

Client Letter is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Client Letter use?

About 2.1k tokens (SKILL.md is roughly 8.3k 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 Client Letter?

Skills that share tags, products or a category with Client Letter: Jev Question Translator (lawve-ai/awesome-legal-skills, 842 stars), Free Youtube Video Editor (LeoYeAI/openclaw-master-skills, 2.2k stars), Asd Ste100 (danyuchn/asd-ste100-skill, 4.2k stars) and Simple Issue Description (every-app/open-seo, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Client Letter?

anthropics (a GitHub organization, an official publisher) maintains it in anthropics/claude-for-legal, which has 9,629 GitHub stars. The repository holds 147 skills in this directory. The repository was last updated on September 29, 2026.

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