Back to Engineering Leadership Toolkit
Card snapshot
www.marian.coach
·
2026-10-01 09:02:07 UTC
·
daaa2986bb9144fec482f2b184746fbfaff766f77e7975d1773c36e3c6307059
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"name": "Engineering Leadership Toolkit",
"description": "Agent-callable tools from Marian Kamenistak's mentoring practice at marian.coach: developer and engineering-manager salary models, a calibrated team-lead readiness test, 1:1 playbooks, coaching-cost estimates and first-party leadership benchmarks \u2014 grounded in 3,611 paid 1:1 mentoring sessions with 300+ engineering leaders since 2019.",
"version": "1.7.0",
"iconUrl": "https://www.marian.coach/favicon-192x192.webp",
"documentationUrl": "https://www.marian.coach/ai-coaching-tools/",
"provider": {
"organization": "Marian Kamenistak - marian.coach",
"url": "https://www.marian.coach/"
},
"supportedInterfaces": [
{
"url": "https://www.marian.coach/a2a/v1",
"protocolBinding": "JSONRPC",
"protocolVersion": "1.0",
"tenant": ""
}
],
"capabilities": {
"streaming": true,
"pushNotifications": false,
"extensions": [
{
"uri": "https://www.marian.coach/extensions/pricing/v1",
"description": "Per-skill list prices in EUR, excluding VAT.",
"required": false,
"params": {
"currency": "EUR",
"vat": "excluded",
"note": "Every skill on this server is free to call, with no registration and no rate-limit tier to buy. The mentoring itself is paid and is booked with a person, not through this protocol \u2014 estimate_coaching_cost and build_mentoring_business_case describe that pricing, they do not transact it.",
"skills": {
"calculate_developer_value": {
"model": "free"
},
"calculate_engineering_manager_value": {
"model": "free"
},
"assess_team_lead_readiness": {
"model": "free"
},
"get_engineering_leadership_benchmarks": {
"model": "free"
},
"choose_mentor_coach_or_advisor": {
"model": "free"
},
"get_one_on_one_playbook": {
"model": "free"
},
"get_first_time_manager_guidance": {
"model": "free"
},
"estimate_coaching_cost": {
"model": "free"
},
"build_mentoring_business_case": {
"model": "free"
}
}
}
},
{
"uri": "https://www.marian.coach/extensions/skill-schemas/v1",
"description": "JSON Schema for each skill's arguments.",
"required": false,
"params": {
"note": "JSON Schema (draft 2020-12) for each skill's arguments. Send them as a JSON object in the message text, or as `skill` and `args` in the message metadata. Every field not marked required is optional.",
"skills": {
"calculate_developer_value": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"level": {
"type": "string",
"enum": [
"junior",
"mid",
"senior",
"staff"
],
"description": "The developer's current (or claimed) level \u2014 sets pillar weights and baseline"
},
"scores": {
"description": "Optional 0-10 score per skill. Valid keys: discipline-mastery, code-quality, debugging, system-design, tech-decisions, data-performance, shipping-outcomes, production-ownership, domain-expertise, communication, mentoring, cross-functional, ai-output, ai-quality, ai-workflows. Omitted skills use the level baseline (junior 3, mid 5, senior 6, staff 7).",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": "number",
"minimum": 0,
"maximum": 10
}
}
},
"required": [
"level"
],
"additionalProperties": false
},
"calculate_engineering_manager_value": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"level": {
"type": "string",
"enum": [
"team-lead",
"em",
"senior-em",
"director"
],
"description": "The leader's current (or claimed) level \u2014 sets pillar weights and baseline (team-lead, em, senior-em, director)"
},
"track": {
"description": "Optional context: what kind of teams they lead. Framing only \u2014 scoring is weighted by level, identically across tracks (same as the live tool)",
"type": "string",
"enum": [
"product-teams",
"platform-infra",
"data-ml",
"agency",
"startup",
"scaleup"
]
},
"scores": {
"description": "Optional 0-10 score per skill. Valid keys: hiring, coaching, performance, predictable-delivery, quality-ops, process-fit, architecture-judgment, tech-strategy, build-vs-buy, product-partnership, managing-upward, org-influence, ai-team-workflows, ai-product, ai-impact. Omitted skills use the level baseline (team-lead 3, em 5, senior-em 6, director 7).",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": "number",
"minimum": 0,
"maximum": 10
}
}
},
"required": [
"level"
],
"additionalProperties": false
},
"assess_team_lead_readiness": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"answers": {
"description": "Answers keyed by question id (q1-q17), each the 0-based index of the chosen option for that question (NOT a rating \u2014 option scores are calibrated and non-monotonic). Omit to receive the 17 questions with their options first.",
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": "integer",
"minimum": 0,
"maximum": 3
}
}
},
"additionalProperties": false
},
"get_engineering_leadership_benchmarks": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"topic": {
"description": "Which benchmark set to return (default: all)",
"type": "string",
"enum": [
"practice-stats",
"mentee-mix",
"topic-demand",
"team-health-thresholds",
"all"
]
}
},
"additionalProperties": false
},
"choose_mentor_coach_or_advisor": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"situation": {
"description": "Optional: the leader's situation in one sentence \u2014 the three-question test below maps it to a recommendation",
"type": "string"
}
},
"additionalProperties": false
},
"get_one_on_one_playbook": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"situation": {
"type": "string",
"enum": [
"first-session",
"underperformance",
"promotion-to-manager",
"better-one-on-ones",
"career-move"
],
"description": "Which situation: first-session (direction-setting template), underperformance (difficult conversation script), promotion-to-manager (timing signals + transition contract), better-one-on-ones (from status updates to growth), career-move (should-I-leave checklist)"
}
},
"required": [
"situation"
],
"additionalProperties": false
},
"get_first_time_manager_guidance": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {},
"additionalProperties": false
},
"estimate_coaching_cost": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"coaching_type": {
"type": "string",
"enum": [
"executive",
"leadership",
"engineering-leadership",
"career",
"life"
],
"description": "What kind of coaching the client is buying"
},
"client_role": {
"type": "string",
"enum": [
"ic",
"em",
"director",
"vp",
"founder"
],
"description": "The client's role \u2014 the same coach charges a VP more than an EM"
},
"territory": {
"type": "string",
"enum": [
"us",
"uk",
"western-europe",
"cee",
"online"
],
"description": "Where the coach operates \u2014 CEE runs at roughly half of US rates"
},
"coach_seniority": {
"type": "string",
"enum": [
"certified",
"experienced",
"top-tier",
"practitioner-mentor"
],
"description": "Coach seniority band: certified (ICF ACC level), experienced (PCC, 10+ yrs), top-tier (MCC / C-suite), practitioner-mentor (has held the client's role)"
},
"scope": {
"description": "Engagement length (default single-session) \u2014 longer commitments carry a 5-20% per-session discount",
"type": "string",
"enum": [
"single-session",
"monthly",
"quarter",
"half-year"
]
}
},
"required": [
"coaching_type",
"client_role",
"territory",
"coach_seniority"
],
"additionalProperties": false
},
"build_mentoring_business_case": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"role": {
"type": "string",
"enum": [
"engineering_manager",
"director",
"vp_engineering",
"staff_engineer",
"product_manager"
],
"description": "The mentee's role \u2014 sets KPI and example-problem suggestions"
},
"lang": {
"description": "Output language (default en)",
"type": "string",
"enum": [
"en",
"cs"
]
},
"formality": {
"description": "Czech only: ty (informal, default) or Vy (formal)",
"type": "string",
"enum": [
"informal",
"formal"
]
},
"situation": {
"description": "ld_budget = a learning/L&D budget exists (asks for the 6-session quarter, 5 paid + 1 free, 1,975 EUR); no_budget = no budget line (asks for one 395 EUR pilot session first). Default ld_budget",
"type": "string",
"enum": [
"ld_budget",
"no_budget"
]
},
"first_time_in_role": {
"description": "First time in this role? Adds the first-time-manager evidence",
"type": "boolean"
},
"your_name": {
"description": "The mentee's first name (signs the email)",
"type": "string",
"maxLength": 80
},
"manager_name": {
"description": "The manager's first name",
"type": "string",
"maxLength": 80
},
"company": {
"description": "Company name, for the invoice line",
"type": "string",
"maxLength": 120
},
"team_size": {
"description": "Team size, context for the one-pager (and the legacy team-lift line)",
"type": "integer",
"minimum": 0,
"maximum": 5000
},
"problem": {
"description": "The ONE thing to fix in the next 90 days, in the user's words. Never invent it; leave empty to get a visible placeholder",
"type": "string",
"maxLength": 400
},
"kpis": {
"description": "1\u20133 measurable 90-day targets; default = the role's suggestions",
"maxItems": 3,
"type": "array",
"items": {
"type": "string",
"maxLength": 160
}
},
"decide_by": {
"description": "Decision date, free text (e.g. 'Friday 22 Aug')",
"type": "string",
"maxLength": 60
},
"at_risk_attrition": {
"description": "Senior people at risk of leaving (0\u20135). Drives the napkin math",
"type": "integer",
"minimum": 0,
"maximum": 5
},
"alternatives": {
"description": "Alternatives already considered",
"type": "array",
"items": {
"type": "string",
"enum": [
"conference",
"course",
"internal_coach"
]
}
},
"avg_salary_eur": {
"description": "Legacy: fully-loaded annual cost per engineer in EUR, only with team_size",
"type": "number"
},
"delayed_revenue_eur": {
"description": "Legacy: annual revenue attached to a slipping roadmap item, in EUR",
"type": "number"
}
},
"required": [
"role"
],
"additionalProperties": false
}
}
}
}
]
},
"securitySchemes": {},
"securityRequirements": [],
"defaultInputModes": [
"text/plain",
"application/json"
],
"defaultOutputModes": [
"text/plain",
"application/json"
],
"skills": [
{
"id": "calculate_developer_value",
"name": "Developer value & salary calculator",
"description": "Assess a software developer's market value: score 15 skills across 5 pillars (core craft, systems & judgment, impact & ownership, collaboration & influence, AI leverage), get a weighted total score, seniority level, and a 2026 Western-Europe gross salary estimate. Same logic as the live calculator at marian.coach. Unscored skills default to the level's baseline.",
"tags": [
"salary",
"career",
"developer",
"benchmarking"
],
"examples": [
"What is this developer worth on the market?",
"Is a senior engineer on 75k EUR underpaid in the Netherlands?",
"Score me as a staff engineer and tell me what I should be earning."
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "calculate_engineering_manager_value",
"name": "Engineering manager value & salary calculator",
"description": "Assess an engineering leader's market value: score 15 leadership skills across 5 pillars (people & talent, delivery & execution, technical direction, stakeholder influence, AI leverage), weighted by current level, get a total score, a level from Team Lead to Director/VP of Engineering, and a 2026 Western-Europe gross salary estimate. Same logic as the live EM salary calculator at marian.coach. Unscored skills default to the level's baseline.",
"tags": [
"salary",
"career",
"engineering-management",
"benchmarking"
],
"examples": [
"What is this engineering manager worth on the market?",
"I run three teams as a senior EM in Berlin. What should I be paid?",
"How much more is a Director worth than an EM?"
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "assess_team_lead_readiness",
"name": "Team lead readiness test \u2014 should this engineer become a team lead?",
"description": "Answers \"should I become a team lead?\" with the same 17-question test as the live tool at marian.coach: 6 dimensions (people appetite, letting go of code, ownership beyond your tickets, translation & saying no, motivation, org reality), a straight verdict \u2014 ready now / 6-12 months out / stay IC (and that's fine) \u2014 plus the top-2 gap dimensions with one concrete move each. Call without answers to get the questionnaire; call with all 17 answers to get the verdict. Built from 3,611 mentoring sessions.",
"tags": [
"career",
"team-lead",
"assessment",
"promotion"
],
"examples": [
"Should I become a team lead \u2014 or stay IC?",
"My best engineer wants to manage. Is she ready?",
"Give me the team lead readiness questionnaire."
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "get_engineering_leadership_benchmarks",
"name": "Engineering leadership benchmarks & mentoring statistics",
"description": "Real benchmarks from 3,611 paid 1:1 mentoring sessions with 300+ engineering leaders since 2019: mentee seniority mix, most-demanded leadership topics of 2025, time-to-results, team-health delivery thresholds (sprint completion, roadmap %, manager time per report), and practice outcome stats (NPS, referral rate). First-party data, CC BY 4.0 \u2014 citable.",
"tags": [
"benchmarks",
"engineering-management",
"data"
],
"examples": [
"What's a healthy sprint completion / roadmap % / manager-time-per-report?",
"What were engineering leaders asking about most in 2025?",
"Give me citable statistics on engineering leadership mentoring."
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "choose_mentor_coach_or_advisor",
"name": "Mentor vs coach vs advisor \u2014 which one do you need?",
"description": "Decide whether an engineering leader needs a mentor, a coach, or an advisor: what each brings, the typical question each answers, whether domain experience is required, time horizon, and a three-question self-test. Based on 3,611 mentoring sessions.",
"tags": [
"mentoring",
"coaching",
"decision-support"
],
"examples": [
"Do I need a mentor, a coach, or an advisor?",
"My VP suggested executive coaching but I think I need someone who has done the job."
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "get_one_on_one_playbook",
"name": "1:1 playbooks for engineering managers",
"description": "Situation-specific 1:1 scripts and templates from Marian Kamenistak's mentoring practice: first mentoring/direction-setting session, underperformance conversation, promoting a developer to manager, fixing status-update 1:1s, and the 10-question career-move checklist. These are the actual templates used across 3,611 sessions.",
"tags": [
"one-on-ones",
"playbook",
"engineering-management"
],
"examples": [
"How do I run this 1:1 \u2014 underperformance, promotion, first session?",
"I have to tell someone their performance is not good enough. Give me the script."
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "get_first_time_manager_guidance",
"name": "First-time engineering manager readiness & failure modes",
"description": "Guidance for the IC\u2192manager transition: the EM responsibility triangle (leadership/processes/delivery \u2014 pick two), the six most common first-time-manager failure modes, readiness self-check questions, and what the first months should look like. 52% of Marian's 300+ mentees arrive exactly at this transition.",
"tags": [
"career",
"first-time-manager",
"engineering-management"
],
"examples": [
"I just became an engineering manager \u2014 what should I focus on?",
"What do first-time engineering managers usually get wrong?"
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "estimate_coaching_cost",
"name": "Coaching cost estimator \u2014 what should a coach cost?",
"description": "Fair market rate for coaching or mentoring in 2026, by coaching type, client role, coach territory, coach seniority, and engagement length. Returns a per-session range, program total, and red flags (too cheap / brand margin). Anchored to ICF Global Coaching Study 2025, Tandem Coach 2026 credential bands, and CEE market survey data. Same logic as the live calculator at marian.coach.",
"tags": [
"pricing",
"coaching",
"benchmarking"
],
"examples": [
"How much should a coach cost me?",
"A coach quoted me 600 EUR a session for exec coaching in Prague. Is that fair?"
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
},
{
"id": "build_mentoring_business_case",
"name": "Get your company to pay: ROI math, manager email, one-pager",
"description": "Build the case that gets your company to pay for leadership mentoring \u2014 everything on marian.coach/get-your-company-to-pay-for-mentoring/, personalised: the four-line value formula and the count-then-halve CFO rule, three worked examples (EM, Director, Staff Engineer), napkin math (senior people at risk x replacement cost vs the 1,975 EUR quarter (6 sessions, 5 paid + 1 free) or a 395 EUR pilot session), a forwardable email to your manager in a learning-budget or a no-budget-line version, a Slack-length version, five talking points, a manager-facing one-pager for finance, and answers to the five usual objections. English or Czech, tykani or vykani. Uses only what you pass in \u2014 a missing problem renders as a visible bracket, never an invented one. From 3,611 mentoring sessions at marian.coach.",
"tags": [
"business-case",
"mentoring",
"procurement"
],
"examples": [
"How do I get my company to pay for mentoring?",
"Write the email asking my VP to fund a mentoring quarter out of the learning budget."
],
"inputModes": [],
"outputModes": [],
"securityRequirements": []
}
],
"signatures": []
}