streamable-httpMITupdated 9d ago
"I just became an engineering manager. What should I focus on?" "What's a healthy sprint completion rate?" "Do I need a mentor or a coach?" "What is this developer worth on the market?" "Should I become a team lead, or stay IC?"
What can you do with eng leadership toolkit?
ai-engineering-leader-toolkit
"I just became an engineering manager. What should I focus on?" "What's a healthy sprint completion rate?" "Do I need a mentor or a coach?" "What is this developer worth on the market?" "Should I become a team lead, or stay IC?"
Your AI already gets asked these. Now it can answer with first-party data from 3,400+ paid 1:1 mentoring sessions with 300+ engineering leaders in 17+ countries, instead of guessing.
This is a remote MCP server. No install, no API key. One URL:
https://www.marian.coach/mcp
Tools
| Tool | The question it answers |
|---|---|
calculate_developer_value |
What is this developer worth? Scores 15 skills across 5 pillars, returns level + 2026 Western-Europe salary estimate |
calculate_engineering_manager_value |
What is this engineering manager worth? Scores 15 leadership skills across 5 pillars, weighted by level, returns Team Lead → Director/VP level + 2026 Western-Europe salary estimate |
assess_team_lead_readiness |
Should I become a team lead? 17 questions, 6 dimensions, a straight verdict (ready now / 6-12 months out / stay IC) + top-2 gaps with one move each |
get_engineering_leadership_benchmarks |
What's healthy? Sprint completion, roadmap %, manager time per report, mentee mix, 2025 topic demand. CC BY 4.0, citable |
choose_mentor_coach_or_advisor |
Mentor, coach, or advisor? All three compared + a three-question self-test |
get_one_on_one_playbook |
How do I run this 1:1? Real session templates: first session, underperformance, promotion to EM, better 1:1s, career move |
get_first_time_manager_guidance |
I'm a new EM, now what? The responsibility triangle, six failure modes, readiness self-check |
build_mentoring_business_case |
How do I get my company to pay for mentoring? Manager email (learning-budget or no-budget version), Slack short, talking points, a one-pager for finance, objections answered, napkin math — EN or CZ |
estimate_coaching_cost |
How much should a coach cost me? Fair per-session range + program total by coaching type, role, territory, and coach seniority — ICF 2025 + CEE market anchors, with red flags |
The business-case tool also has a plain JSON surface for the marian.coach pricing-page wizard, same core, same output: GET https://www.marian.coach/mcp/business-case?lang=en|cs returns the wizard options, POST with the tool's input JSON returns the structured case.
Connect
Claude Code
claude mcp add -t http eng-leadership-toolkit https://www.marian.coach/mcp
Claude.ai / Claude Desktop
Settings > Connectors > Add custom connector > https://www.marian.coach/mcp
Cursor (.cursor/mcp.json)
{
"mcpServers": {
"eng-leadership-toolkit": {
"url": "https://www.marian.coach/mcp"
}
}
}
ChatGPT
Settings > Connectors > Developer mode > Add server > https://www.marian.coach/mcp
Human-readable docs live at the same URL: open www.marian.coach/mcp in a browser.
Where the data comes from
Every response is grounded in Marian Kamenistak's mentoring practice, not model guesses:
- The calculators mirror the live developer value calculator and engineering manager salary calculator
- The readiness test mirrors the live team lead readiness test
- Benchmarks come from the published engineering leadership statistics, licensed CC BY 4.0
- Playbooks are the actual session templates used across 3,400+ sessions
Nothing is synthetic. Thin topics were cut rather than padded.
Stack
Cloudflare Workers + Durable Objects, McpAgent from the agents SDK, streamable HTTP, authless. GET /mcp with an HTML accept header serves the docs page; MCP clients hit the same URL.
npm install
npx wrangler dev # local
npx wrangler deploy # ship it
Author
Marian Kamenistak. 20+ years in software, grew Mews engineering 8 to 80 through Series C, now mentors engineering leaders full-time and runs the Engineering Leaders Community in CEE.
Found it useful? A star helps other engineering leaders' AIs find it too.
License
MIT
Install
Add eng leadership toolkit to your client. Pick the one you use.
claude mcp add --transport http eng-leadership-toolkit https://www.marian.coach/mcpcodex mcp add eng-leadership-toolkit --url https://www.marian.coach/mcp{
"mcpServers": {
"eng-leadership-toolkit": {
"url": "https://www.marian.coach/mcp"
}
}
}Add to `~/.cursor/mcp.json`, or `.cursor/mcp.json` for a single project.
{
"servers": {
"eng-leadership-toolkit": {
"type": "http",
"url": "https://www.marian.coach/mcp"
}
}
}Add to `.vscode/mcp.json` in your workspace.
{
"mcpServers": {
"eng-leadership-toolkit": {
"url": "https://www.marian.coach/mcp"
}
}
}Add to `claude_desktop_config.json`, then restart Claude Desktop.
{
"mcpServers": {
"eng-leadership-toolkit": {
"serverUrl": "https://www.marian.coach/mcp"
}
}
}Add to `~/.codeium/windsurf/mcp_config.json`.
9 tools
eng leadership toolkit exposes 9 tools to a connected agent.
- calculate_developer_value
- What is this developer worth? Scores 15 skills across 5 pillars, returns level + 2026 Western-Europe salary estimate
- calculate_engineering_manager_value
- What is this engineering manager worth? Scores 15 leadership skills across 5 pillars, weighted by level, returns Team Lead → Director/VP level + 2026 Western-Europe salary estimate
- assess_team_lead_readiness
- Should I become a team lead? 17 questions, 6 dimensions, a straight verdict (ready now / 6-12 months out / stay IC) + top-2 gaps with one move each
- get_engineering_leadership_benchmarks
- What's healthy? Sprint completion, roadmap %, manager time per report, mentee mix, 2025 topic demand. CC BY 4.0, citable
- choose_mentor_coach_or_advisor
- Mentor, coach, or advisor? All three compared + a three-question self-test
- get_one_on_one_playbook
- How do I run this 1:1? Real session templates: first session, underperformance, promotion to EM, better 1:1s, career move
- get_first_time_manager_guidance
- I'm a new EM, now what? The responsibility triangle, six failure modes, readiness self-check
- build_mentoring_business_case
- How do I get my company to pay for mentoring? Manager email (learning-budget or no-budget version), Slack short, talking points, a one-pager for finance, objections answered, napkin math — EN or CZ
- estimate_coaching_cost
- How much should a coach cost me? Fair per-session range + program total by coaching type, role, territory, and coach seniority — ICF 2025 + CEE market anchors, with red flags
Score
81 / 100
Excellent
- Documentation25/25
- Maintenance25/25
- Trust13/20
- Capability6/15
- Install experience12/15
- Documents what it does and how to connect
- Has a resolvable package or endpoint
- Exposes at least one tool, prompt or resource
- README has substantive content
- Includes a code example
- Documents its configuration
- Mentions credentials or security posture
- Last commit 1 days ago
- Has a release history
- Repository is not archived
- Licensed MIT
- Namespace verified in the official MCP registry
- Claimed by its owner
- Published under an organisation
- 9 tool(s) documented
- Provides prompt templates
- Provides resources
- 6 documented install method(s)
- Published to a package registry
- Offers a hosted endpoint — no local install
Version history
| Versions | Published |
|---|---|
| 1.4.0Latest | Aug 9, 2026 |
| 1.2.1 | Jul 22, 2026 |
| 1.2.0 | Jul 22, 2026 |
| 1.1.0 | Jul 22, 2026 |
| 1.0.0 | Jul 12, 2026 |