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cold-outreach-hunter

// Meta-skill for orchestrating Apollo API, LinkedIn API, YC Cold Outreach, and MachFive Cold Email into a complete B2B cold outreach pipeline. Use when the user wants end-to-end lead sourcing, enrichment, personalized copy strategy, and generation-ready outreach sequences with strict quality and safet

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updated:March 4, 2026
SKILL.mdreadonly
SKILL.md Frontmatter
namecold-outreach-hunter
descriptionMeta-skill for orchestrating Apollo API, LinkedIn API, YC Cold Outreach, and MachFive Cold Email into a complete B2B cold outreach pipeline. Use when the user wants end-to-end lead sourcing, enrichment, personalized copy strategy, and generation-ready outreach sequences with strict quality and safety gates.
homepagehttps://clawhub.ai
user-invocabletrue
disable-model-invocationfalse
metadata[object Object]

Purpose

Run a full B2B cold outreach workflow from ICP definition to sequence-ready output.

Primary objective:

  • Identify high-fit leads.
  • Enrich context for personalization.
  • Produce concise, non-salesy, high-response outreach sequences.
  • Return execution-ready assets for external sending/scheduling systems.

This is an orchestration skill. It coordinates upstream skills; it does not replace them.

Required Installed Skills

  • apollo-api (inspected latest: 1.0.5)
  • linkedin-api (inspected latest: 1.0.2)
  • yc-cold-outreach (inspected latest: 1.0.1)
  • cold-email (MachFive Cold Email, inspected latest: 1.0.5)

Install/update with ClawHub:

npx -y clawhub@latest install apollo-api
npx -y clawhub@latest install linkedin-api
npx -y clawhub@latest install yc-cold-outreach
npx -y clawhub@latest install cold-email
npx -y clawhub@latest update --all

Verify availability:

npx -y clawhub@latest list

If any required skill is missing, stop and report exact install commands.

Required Credentials

  • MATON_API_KEY for apollo-api and linkedin-api (Maton gateway)
  • MACHFIVE_API_KEY for cold-email

Preflight checks:

echo "$MATON_API_KEY" | wc -c
echo "$MACHFIVE_API_KEY" | wc -c

If either key is missing or empty, stop before lead processing.

Job Context Template

Collect these inputs before execution:

  • offer: what is being sold (example: design service)
  • icp_title: target role (example: CMO)
  • icp_industry: target industry (example: SaaS)
  • icp_location: target location (example: Berlin)
  • lead_count_target (example: 50)
  • campaign_goal: reply, meeting, referral, audit request, etc.
  • proof_points: case studies, metrics, social proof
  • tone_constraints: plain-English, short, non-salesy
  • machfive_campaign (campaign ID or campaign name to resolve)
  • execution_mode: draft-only or generation-ready

Do not start writing copy until these are explicit.

Tool Responsibilities

Apollo API (apollo-api)

Use for lead discovery and basic enrichment.

Operationally relevant behavior from inspected skill:

  • Search people: POST /apollo/v1/mixed_people/api_search
  • Search filters include:
    • q_person_title
    • person_locations
    • q_organization_name
    • q_keywords
  • Enrich person by email or LinkedIn URL:
    • POST /apollo/v1/people/match
  • Supports pagination via page and per_page.
  • Uses Maton gateway and optional Maton-Connection header.

Primary output of this stage:

  • initial lead list with role/company/email/linkedin_url (when available)

LinkedIn API (linkedin-api)

Use for LinkedIn-side context where accessible through provided endpoints.

Operationally relevant behavior from inspected skill:

  • Authenticated profile/user info endpoints (for connected account context).
  • Content/posting APIs (ugcPosts) and organization post/stat APIs.
  • Requires MATON_API_KEY and LinkedIn protocol headers.

Important boundary:

  • The inspected skill is not a generic scraper for arbitrary third-party personal profiles and recent personal posts.
  • If a workflow requires deep per-lead personal-post enrichment, mark that as additional-tool-required.

YC Cold Outreach (yc-cold-outreach)

Use as writing strategy/critique framework, not as a transport API.

Core principles to enforce:

  • single goal per email
  • human tone
  • deep personalization (not just token replacement)
  • brevity/mobile readability
  • credibility and proof
  • reader-centric language
  • clear CTA

MachFive Cold Email (cold-email)

Use for sequence generation from prepared lead records.

Operationally relevant behavior from inspected skill:

  • Campaign required (campaign_id mandatory for generate endpoints).
  • Single lead sync generation (/generate) can take minutes; use long timeout.
  • Batch async generation (/generate-batch) returns list_id; poll list status; export when complete.
  • Lead email is required.
  • Supports structured sequence output with subject/body per step.

Canonical Workflow

Stage 1: Build lead universe (Apollo)

  1. Query Apollo for ICP-constrained leads (example: CMO + SaaS + Berlin).
  2. Page until lead_count_target or quality threshold is reached.
  3. Normalize each lead record to required fields.
  4. Drop records without email if generation-ready mode is requested (MachFive requires email).

Recommended normalized lead schema:

{
  "lead_id": "apollo-or-derived-id",
  "name": "Anna Example",
  "title": "Chief Marketing Officer",
  "company": "Startup GmbH",
  "location": "Berlin",
  "email": "anna@startup.com",
  "linkedin_url": "https://linkedin.com/in/...",
  "source": "apollo-api"
}

Stage 2: Enrich personalization context

  1. Attempt LinkedIn/API enrichment within supported endpoints.
  2. If direct personal-post signal is unavailable, keep the context slot explicit as not_available.
  3. Optionally enrich from Apollo fields (company, role, keywords, domain context) to avoid fake personalization.

Personalization object per lead:

{
  "icebreaker": "not_available_or_verified_fact",
  "pain_hypothesis": "Likely CRO bottleneck in paid landing pages",
  "proof_hook": "Helped X improve conversion by Y%",
  "confidence": 0.0
}

Hard rule:

  • Never invent a post, interest, or quote.

Stage 3: Message strategy (YC framework)

For each lead, create a strategy brief before generating copy:

  • Problem: what specific pain this role likely has
  • Solution: what your offer solves
  • Proof: one concrete metric/client signal
  • CTA: one low-friction next step

Apply YC constraints:

  • one ask
  • short/mobile-first
  • human language
  • personalization grounded in verifiable context

Stage 4: Sequence generation (MachFive)

  1. Resolve campaign ID first (GET /api/v1/campaigns) if not provided.
  2. Submit leads with required email field.
  3. Prefer batch for many leads; poll until completion.
  4. Export JSON result and map sequences back to lead IDs.

Required generation payload hygiene:

  • include name, title, company, email
  • include linkedin_url and company_website when available
  • set email_count intentionally (usually 3)
  • use approved CTA set aligned with campaign goal

Stage 5: QA and decision gate

Before declaring output ready, validate each sequence:

  • personalization factuality check
  • YC rubric check (human, concise, one CTA)
  • token insertion sanity (name/company/title correct)
  • prohibited claims check (no fabricated proof)

Any failed sequence must be flagged needs_revision.

Stage 6: Scheduling and send handoff

This meta-skill outputs send-ready recommendations, not direct send automation.

If user asks for timing optimization (for example Tuesday 10:00), return it as a scheduling recommendation field and handoff plan.

Example handoff object:

{
  "lead_id": "...",
  "sequence_status": "approved",
  "suggested_send_time_local": "Tuesday 10:00",
  "timezone": "Europe/Berlin",
  "send_system": "external",
  "notes": "Timing is recommendation-only; execution tool must schedule/send."
}

Causal Chain (Scenario Mapping)

For the scenario "sell design services to startup marketing leaders":

  1. Apollo returns target leads (example target: 50 CMOs in Berlin SaaS).
  2. LinkedIn/API enrichment attempts to add usable context per lead.
  3. YC framework converts lead context into a concise Problem → Solution → Proof → CTA angle.
  4. MachFive generates multi-step sequences with validated variables.
  5. Agent outputs:
    • approved sequences
    • quality score per lead
    • scheduling recommendation (example: Tuesday 10:00 local)

Output Contract

Always return these sections:

  • LeadSummary

    • requested vs qualified lead count
    • rejection reasons (missing email, poor fit, duplicate)
  • EnrichmentSummary

    • fields successfully enriched
    • unavailable fields and why
  • SequencePackage

    • one object per lead with subjects/bodies by step
    • QA status (approved or needs_revision)
  • ExecutionPlan

    • send-time recommendation
    • required external sender/scheduler
    • blockers (missing campaign, missing API key, missing email)

Guardrails

  • Never fabricate personalization facts.
  • Never claim a lead posted something unless sourced and verifiable.
  • Do not proceed to MachFive generation without campaign ID resolution.
  • Do not mark sequence approved when CTA is unclear or multiple asks exist.
  • Keep language non-manipulative and compliant with outreach policies.

Failure Handling

  • Missing MATON_API_KEY: stop Apollo/LinkedIn stages.
  • Missing MACHFIVE_API_KEY: stop generation stage and return draft-only strategy.
  • Missing campaign ID: list campaigns and request explicit selection.
  • Batch timeout/partial output: continue via list status + export recovery flow.
  • Insufficient lead quality: return reduced high-quality set instead of forcing volume.

Known Limits from Inspected Upstream Skills

  • linkedin-api inspected capability set is not equivalent to unrestricted scraping of arbitrary personal lead activity.
  • cold-email generates sequences but does not itself guarantee outbound send scheduling/execution.
  • apollo-api provides search/enrichment primitives; email deliverability validation beyond provider fields may require extra tooling.

Treat these as explicit constraints in planning and reporting.