zendesk-mcp-server: Instructions file for Claude Code

AGENTS.md

zendesk-mcp-server AGENTS.md is an instructions file for Claude Code, Codex, OpenCode from fruggr/zendesk-mcp-server. It costs 4,389 tokens per session, scanned A, original, MIT.

Project instructions for an MCP server that gives AI agents access to Zendesk support features. Zendesk is a customer-service platform, and MCP is a standard way for software tools to provide capabilities to AI agents.

In plain words
What is it for?
Adding or changing Zendesk tools, understanding the server architecture, reloading tools during development, and following its testing and design rules.
Why use it?
They help agents build on existing tools and follow the server's usage-focused design instead of duplicating work or mirroring the external API blindly.

Instructions file for Claude CodeCodexOpenCode

Written for Claude Code and Codex and OpenCode: PostToolUse hook event, but also the file is AGENTS.md. Also seen: mentions Claude Code; mentions AGENTS.md.

This is fruggr/zendesk-mcp-server's own configuration. It tells Claude Code, Codex and OpenCode how to work on zendesk-mcp-server 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 zendesk-mcp-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to fruggr/zendesk-mcp-server. 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/fruggr/zendesk-mcp-server/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/fruggr/zendesk-mcp-server

Made for: Claude Code, Codex, OpenCode.

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Per session 4,389 This file is loaded in full into every session.
When invoked 4,389 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.04389 $0.04389
Opus 5.5 $0.01756 $0.01756
Sonnet 5.5 $0.00878 $0.00878
Haiku 4.5 $0.00439 $0.00439

Measured today against content hash c9e4cdabf064, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

zendesk-mcp-server AGENTS.md scanned grade A with 1 finding 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 today.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

exporting, no `curl`: the scripts resolve it themselves (`docs/live-testing.md`).
AGENTS.md · 297 lines

How it starts

The opening of the file, as written. The whole thing — 297 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Working guide for AI agents

Purpose & scope. This file orients an LLM working in this repo: where things live and the rules that aren't obvious from the code. It is not user documentation.

  • Don't document what the code already shows. File-by-file trees, command listings, env-var tables, setup steps — the agent reads those from the source, package.json or the docs faster than it trusts a prose copy here, and duplicating them only burns context and goes stale.
  • Keep each section short — durable rules and pointers, not reference material. When a section grows into setup steps, command listings or exhaustive detail, it's user-facing (→ README.md) or a deep dive (→ docs/): link it, don't inline it.
  • Write for the next agent, not for the record. A line earns its place here only by changing what someone does next. Don't log what was done, renamed or decided — git history already holds that. Rare exception: a migration still in flight, where both the old and the new state are live; drop the note once it lands.

Toolchain (Node 24 + pnpm 12) is the dev floor; the published package still runs on Node 22+ (a CI job exercises the packed tarball on Node 22).

On Claude Code on the web, the Node environment is set up automatically at session start (dependencies installed), so tests and linters work right away.

Iterating on tool code? Start the server with --dev (stdio) to expose a reload_tools tool. After editing a src/tools/*.ts file, call reload_tools to re-register the whole toolset over the live session — the edit takes effect with no restart and no client reconnect. Details in docs/configuration.md (Dev mode).

Claim before you build — no duplicate work

Parallel duplicate work has happened here. Before coding an issue: re-read it live (closed completed / released → it already shipped, stop); search open and merged PRs for its number (is:pr #<n>) — coordinate on an open one, don't fork; then self-assign, drop a "picking this up" comment, and open your PR as a draft early. Link the issue in the PR description with a closing keyword (Closes #<n> — not Implements/bare #<n>, which don't close it) so it auto-closes on squash-merge to main. Need a follow-up on already-shipped work? Open a new issue for the delta. Fuller checklist in CONTRIBUTING.md.

Read the full file on GitHub · 297 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. today Changed · +16 lines · +193 tokens per session c9e4cdabf064
  2. 4d ago Changed · +9 lines · +163 tokens per session 4be76996104f
  3. 7d ago Changed · +2 lines · +33 tokens per session 4292c3f3719f
  4. 8d ago Changed · -1 lines · -3 tokens per session dd3cca4d00b2
  5. 21d ago Changed · +3 lines · +70 tokens per session e06c20523193
  6. 25d ago Changed · +5 lines · +96 tokens per session df6105bf6af8
  7. 29d ago Changed · +14 lines · +211 tokens per session 7d16adced8cd
  8. 1mo ago Changed · +7 lines · +119 tokens per session be4fa1abdf69
  9. 1mo ago Changed · +4 lines · +92 tokens per session 7cabb87b74a8
  10. 1mo ago First seen · 238 lines · 3,415 tokens per session scan A 701868379991

Subscribe to this mod's changes

zendesk-mcp-server AGENTS.md is an instructions file published in the GitHub repository fruggr/zendesk-mcp-server (14 stars, last pushed today), licensed MIT. It adds 4,389 tokens to every session, about $0.0176 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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