Intercom Security Basics

What it does

When your agent uses it

• Securing access tokens
• Implementing webhook signature validation
• Configuring least-privilege OAuth scopes
• With phrases like intercom security

Example prompts

• “intercom security”
• “intercom secrets”
• “secure intercom”
• “/intercom-security-basics”

Requirements

• A credential in INTERCOM_ACCESS_TOKEN
• A credential in INTERCOM_WEBHOOK_SECRET
• Compatibility (from SKILL.md): Designed for Claude Code
• Pre-approved tools (allowed-tools): Read, Write, Grep

Workflow steps

5 steps, taken from the step headings in SKILL.md.

1. 1Secure Token Storage
2. 2Webhook Signature Verification (X-Hub-Signature)
3. 3Identity Verification (User Hash)
4. 4Least-Privilege OAuth Scopes
5. 5Token Rotation Procedure

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Grep

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • git
  • curl
  • jq

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

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • api.intercom.io

  Also links to:

  • developers.intercom.com

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

• Credentials

  Names these keys or tokens, usually read from environment variables:

  • INTERCOM_ACCESS_TOKEN
  • INTERCOM_IDENTITY_SECRET
  • INTERCOM_WEBHOOK_SECRET
  • NEW_TOKEN

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

• Compatibility

  Designed for Claude Code

  From compatibility in the SKILL.md frontmatter.

Context cost

Intercom Security Basics loads about 1.7k tokens when it runs, and up to ~3.5k if it reads all its reference files. Until then it costs about 93 tokens; SKILL.md has 581 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~93

When it runs · the whole SKILL.md, loaded when a task matches

~1.7k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~3.5k

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

• NoteMentions a .env fileSKILL.md:50

  Store every secret in `.env` (or a secret manager) and never commit it.

• NoteMentions a .env fileSKILL.md:53

  # .env (NEVER commit to git)

• NoteMentions a .env fileSKILL.md:59

  .env

• NoteMentions a .env fileSKILL.md:60

  .env.local

• NoteMentions a .env fileSKILL.md:61

  .env.*.local

• NoteMentions a .env fileSKILL.md:120

  - A `.env` (or secret-manager entry) holding `INTERCOM_ACCESS_TOKEN`,

• NoteMentions a .env fileSKILL.md:121

  `, and `INTERCOM_IDENTITY_SECRET`, with `.env` patterns

• NoteMentions a .env fileSKILL.md:134

  - [ ] `.env` files in `.gitignore`

• NoteMentions a .env fileSKILL.md:157

  rom zero** — store the three secrets in `.env`

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 jeremylongshore/tons-of-skills-marketplace at commit 80f86df, republished under its MIT licence (© jeremylongshore). 581 words, ~1,693 tokens.

name

intercom-security-basics

description

Apply Intercom security best practices for tokens, webhook verification, and scopes. Use when securing access tokens, implementing webhook signature validation, or configuring least-privilege OAuth scopes. Trigger with phrases like "intercom security", "intercom secrets", "secure intercom", "intercom webhook signature", "intercom token rotation".

allowed-tools

Read, Write, Grep

compatibility

Designed for Claude Code

version

1.6.0

license

MIT

author

Jeremy Longshore <jeremy@intentsolutions.io>

tags

saas, support, messaging, intercom

# .env (NEVER commit to git)
INTERCOM_ACCESS_TOKEN=dG9rOmFiY2RlZmdoaQ==
INTERCOM_WEBHOOK_SECRET=your-webhook-signing-secret
INTERCOM_IDENTITY_SECRET=your-identity-verification-secret

# .gitignore (mandatory entries)
.env
.env.local
.env.*.local

git log --all -p | grep -i "INTERCOM_ACCESS_TOKEN\|dG9r" | head -5
# If found: rotate the token immediately, then use git-filter-repo to remove it.

const expectedSignature = "sha1=" + crypto
  .createHmac("sha1", secret)
  .update(payload)   // payload = raw Buffer, not parsed JSON
  .digest("hex");
return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expectedSignature));

crypto.createHmac("sha256", process.env.INTERCOM_IDENTITY_SECRET!)
  .update(userId)
  .digest("hex");

curl -s https://api.intercom.io/me \
  -H "Authorization: Bearer $NEW_TOKEN" | jq '.type'
# Should return "admin"

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

Files

SKILL.md and 2 other files (references) in skills/.curated/intercom-security-basics of jeremylongshore/tons-of-skills-marketplace.

• SKILL.md
• references/examples.md
• references/implementation.md

Open the folder on GitHubat commit 80f86df