Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add AcKeskin/contexture --skill new-mcpgit clone --depth 1 https://github.com/AcKeskin/contextureWrote 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.
[](https://agentmods.dev/skills/ackeskin/contexture/new-mcp)<a href="https://agentmods.dev/skills/ackeskin/contexture/new-mcp"><img src="https://agentmods.dev/badge/skills/ackeskin/contexture/new-mcp/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.
<a href="https://agentmods.dev/skills/ackeskin/contexture/new-mcp"><img src="https://agentmods.dev/badge/skills/ackeskin/contexture/new-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00075 | $0.02455 |
| Opus 5.5 | $0.00030 | $0.00982 |
| Sonnet 5.5 | $0.00015 | $0.00491 |
| Haiku 4.5 | $0.00007 | $0.00246 |
Grade A, and why
new-mcp 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 1mo ago.
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.
How it starts
The opening of the file, as written. The whole thing — 293 lines — stays where its author put it; the contents beside it link to each section on GitHub.
new-mcp
Scaffold MCP (Model Context Protocol) server projects end-to-end. Two flavors: simple tool server (direct computation, no external dependencies) and API wrapper (wraps an external REST API with auth, rate limiting, error handling). Both TypeScript and Python supported.
When to run
- User types
/new-mcp(explicit trigger). - User says "scaffold an MCP server," "create a new MCP," "add an MCP tool server."
- Do not auto-fire. Mode A only — every run goes through the interview.
Inputs
- Triggering message. Anything after
/new-mcpis hint text — biases language/flavor selection but never skips the interview. - Existing mcps tree.
mcps/in the repo root — used for collision check. ~/.claude.json. Read for the merge contract when registering the MCP server.
Procedure
1. Language choice
Prompt:
Which language?
1. TypeScript (Node.js)
2. Python
Wait for the user's choice. Determines the template set and downstream commands.
2. Flavor selection
Prompt:
What kind of MCP server?
1. Simple tool server — direct computation, no external API calls
2. API wrapper — wraps an external REST API with auth and error handling
Wait for the user's choice. Determines template variant and whether step 7 runs.
3. Server name
Prompt:
What should the server be called? (lowercase-with-dashes, e.g. weather-lookup, jira-bridge)
Validate: lowercase letters, digits, hyphens only. No leading/trailing hyphen, no double hyphens. Reject otherwise with the rule restated.
4. Collision check
Check mcps/<name>/ directory. If it exists:
Server '<name>' already exists at mcps/<name>/.
(o)verwrite — delete existing directory, scaffold fresh
(r)ename — pick a new server name
(a)bort — exit without changes
Choice?
- overwrite: warn that existing files will be replaced. Proceed.
- rename: loop back to step 3.
- abort: stop cleanly. No writes.
5. Server description
What ships with it
12 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- lib/claude-json-merge.js 3.6 KB runs code
- lib/tool-codegen.js 2.5 KB runs code
- templates/py-api/requirements.txt.template 25 B
- templates/py-api/src/server.py.template 602 B
- templates/py-simple/requirements.txt.template 11 B
- templates/py-simple/src/server.py.template 178 B
- templates/ts-api/package.json.template 381 B
- templates/ts-api/src/index.ts.template 815 B
- templates/ts-api/tsconfig.json.template 350 B
- templates/ts-simple/package.json.template 381 B
- templates/ts-simple/src/index.ts.template 543 B
- templates/ts-simple/tsconfig.json.template 288 B
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.
- 1mo ago First seen · 293 lines · 75 tokens per session scan A 06f474ff29b0
new-mcp is a skill published in the GitHub repository AcKeskin/contexture (2 stars, last pushed 2mo ago), licensed MIT. It adds 75 tokens to every session and 2,455 once invoked, about $0.0003 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 2026-09-03.
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