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signoz-mcp-server: Instructions file for Claude Code

CLAUDE.md

signoz-mcp-server CLAUDE.md is an instructions file for Claude Code from SigNoz/signoz-mcp-server. It costs 3,000 tokens per session, scanned A, original, Apache-2.0.

A set of development rules for the SigNoz MCP server, including feature planning, documentation, Git and pull-request practices, and coding style. An MCP server is a program that lets an AI tool use defined external capabilities.

In plain words
What is it for?
It helps developers plan non-trivial features, record open questions and decisions, follow repository rules, and prepare changes for review.
Why use it?
It keeps feature decisions traceable by requiring context and plan files, discussion logs, and documented changes.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions subagents.

This is SigNoz/signoz-mcp-server's own configuration. It tells Claude Code how to work on signoz-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 signoz-mcp-server configures →

not rated 128repo changed yesterday A scan 3,000 tokens original Apache-2.0
View source ↗ SigNoz/signoz-mcp-server signoz.io
Reuse

Borrowing it

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

Made for: Claude Code.

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 signoz-mcp-server CLAUDE.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/signoz/signoz-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/signoz/signoz-mcp-server/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/signoz/signoz-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/signoz/signoz-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,000 This file is loaded in full into every session.
When invoked 3,000 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.03000 $0.03000
Opus 5.5 $0.01200 $0.01200
Sonnet 5.5 $0.00600 $0.00600
Haiku 4.5 $0.00300 $0.00300

Measured yesterday against content hash 01e72357e63c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

signoz-mcp-server CLAUDE.md 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 yesterday.

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.

CLAUDE.md · 189 lines

How it starts

The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Go MCP server that gives MCP clients access to SigNoz metrics, logs, traces, alerts, dashboards, saved views, notification channels, and docs over stdio and stateless streamable HTTP. It calls the SigNoz backend and query-builder (QB) APIs upstream. Downstream, MCP clients, the SigNoz/agent-skills repo, and custom agents and clients built on this server consume its tool contracts.

Commands

  • make ci: run before pushing. Runs everything the PR gate runs except the live e2e suite: check-fmt, lint (golangci-lint pinned to CI's version), check-deps, check-build, test-race, check-guardrails, check-protocol, check-conformance, check-e2e-style, and check-repo-docs. Each step is also its own target. Needs Node, uv, goimports (make install-goimports), and GNU timeout (on macOS, brew install coreutils). CI uses Go 1.26; with a newer local Go, run GOTOOLCHAIN=go1.26.0 make ci to match it.
  • make test: all Go tests, verbose. One test: go test ./internal/handler/tools -run TestName -count=1.
  • make fmt goimports: rewrite formatting and imports. make build runs both first.
  • make test-e2e: e2e suite against an ephemeral SigNoz cast by foundry. make setup-e2e-env keeps the environment and make test-e2e-reuse reruns against it. See tests/README.md.
  • make docs-index: rebuild the embedded docs corpus in internal/docs/assets/. Diff the manifest and commit both files.
  • make gen: regenerate everything derived from the pinned SigNoz spec (SIGNOZ_SPEC_REF): the API client in internal/apiclient/ from skaff.yml, the dashboard input schemas in internal/handler/tools/schemas/, and the pkg/*/examples.generated.md files behind the signoz://*/examples resources (tools/specgen/specgen.py). Takes several minutes and needs a gh login that can read SigNoz/skaff; make gen-spec regenerates only the schemas and examples and needs neither. make gen-check fails when any committed generated file is stale.
  • make check-repo-docs READY=1: the plan rules CI applies once a PR leaves draft.

Read the full file on GitHub · 189 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. yesterday Changed · +5 lines · +92 tokens per session 01e72357e63c
  2. 20d ago Changed · +14 lines · +307 tokens per session bcfcd408e636
  3. 1mo ago Changed · +90 lines · +1,202 tokens per session 96f0a440c5d7
  4. 1mo ago Changed · -12 lines · -100 tokens per session c86dda8168b0
  5. 1mo ago Changed · +2 lines · +71 tokens per session 2b4ac215ecb4
  6. 1mo ago First seen · 90 lines · 1,428 tokens per session scan A 182e81ef5c19

Subscribe to this mod's changes

signoz-mcp-server CLAUDE.md is an instructions file published in the GitHub repository SigNoz/signoz-mcp-server (128 stars, last pushed yesterday), licensed Apache-2.0. It adds 3,000 tokens to every session, about $0.0120 per session on Opus 5.5. 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.

mcp-servermonitoringobservabilityopentelemetry
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