leads

name

leads

description

B2B lead discovery and enrichment skill. Finds company addresses, employee emails, and phone numbers filtered by industry, geography, role, and company size. 100% free-tier: orchestrates Claude Code's native WebSearch and WebFetch plus free OSINT subprocesses (theHarvester, crt.sh, whois, GitHub API, OSM Overpass, DNS MX, bash SMTP probe). No paid API keys required — optional env vars (ZUVO_HUNTER_KEY, ZUVO_APOLLO_KEY, ZUVO_GITHUB_TOKEN) are recognized as enhancers but never required. Hybrid mode: supplying --domains triggers enrichment; --industry + --geo triggers discovery. Interactive checkpoints after Phase 1 and Phase 2. Output: CSV + JSON + Markdown in docs/leads/. Optional --gdpr-strict for EU/EEA compliance.

zuvo:leads

Free-tier B2B contact discovery orchestrator. Runs a 7-phase pipeline with interactive checkpoints, parallel-agent dispatch, graceful degradation when tools are missing, and atomic output writes.

Argument Parsing

Flag	Type	Default	Purpose
--industry "<term>"	string	—	discovery-mode filter
--geo "<country|city>"	string	—	ISO 3166-1 code or city name
--role "<title>"	string	—	target role
--seniority <level>	enum	any	c-level,vp,director,manager,ic
--size-band <band>	enum	any	1-10/11-50/.../5001+
--max-results N	int	50	hard cap on contacts
--max-companies N	int	derived	default: ceil(max-results/2)
--domains <file>	path	—	triggers enrichment mode
--dedup-against <file>	path	—	suppress matching records
--gdpr-strict	bool	false	enable GDPR restrictions
--keep-phones	bool	false	only with --gdpr-strict; retain all phones
--output <slug>	string	derived	filename stem
--resume	bool	false	continue from checkpoint
--no-interactive	bool	false	auto-accept checkpoints, emit [AUTO-CHECKPOINT]
--dry-run	bool	false	plan only, no network calls

Env vars (all optional): ZUVO_HUNTER_KEY, ZUVO_APOLLO_KEY, ZUVO_GITHUB_TOKEN, ZUVO_LEADS_OUTPUT_DIR, ZUVO_LEADS_DISABLED, ZUVO_SMTP_PROBE_CMD, ZUVO_LEADS_ALLOW_INSECURE_CONFIG. API keys MUST come from env/config only — NEVER from CLI flags.

Mandatory File Loading

CORE FILES LOADED:
  1. ../../shared/includes/env-compat.md            -- READ/MISSING
  2. ../../shared/includes/live-probe-protocol.md   -- READ/MISSING
  3. ../../shared/includes/lead-output-schema.md    -- READ/MISSING
  4. ../../shared/includes/lead-source-registry.md  -- READ/MISSING
  5. ../../shared/includes/knowledge-prime.md       -- READ/MISSING
  6. ../../shared/includes/knowledge-curate.md      -- DEFERRED (completion)
  7. ../../shared/includes/run-logger.md            -- DEFERRED (completion)
  8. ../../shared/includes/retrospective.md         -- DEFERRED (completion)
  9. ../../shared/includes/adversarial-loop-docs.md -- OPTIONAL

If any READ-marked file is missing: STOP.

Authoritative References — Don't Inline

• Output record shape → ../../shared/includes/lead-output-schema.md
• Source strategies (queries, subprocess commands, API endpoints) → ../../shared/includes/lead-source-registry.md
• HTTP safety (rate limits, robots.txt, User-Agent) → ../../shared/includes/live-probe-protocol.md
• Agent dispatch → ../../shared/includes/env-compat.md

This file orchestrates. Data definitions and source templates live in the includes.

---

Phase 0 — Bootstrap

Step 0.1 — Kill-switch check

If ZUVO_LEADS_DISABLED=1: print Skill disabled by env flag. and exit 0.

Step 0.2 — Parse args + mode detection

• If both --domains AND (--industry or --geo) are supplied: exit 2 (via echo ... >&2; exit 2 — NOT exit 2 "msg"; bash exit does not accept a message argument) with Ambiguous mode: --domains triggers enrichment, --industry triggers discovery. Choose one.
• If --domains <file> supplied: mode=enrichment
• If --industry or --geo or --role supplied: mode=discovery
• Otherwise: exit 2 (via echo ... >&2; exit 2 — NOT exit 2 "msg"; bash exit does not accept a message argument) with usage help

Step 0.3 — Path safety check (--domains, --dedup-against)

For any file-path flag, resolve with realpath (WITHOUT -s — symlinks MUST be followed so a symlink under an allowed root cannot be used to escape it) BEFORE prefix comparison against allowed roots ($REPO_ROOT/docs/, $REPO_ROOT/scripts/, $CWD). This defeats ../-style directory traversal (a naive string prefix match would accept docs/../../etc/shadow). Reject with exit 2 if the resolved path is outside allowed roots.

Step 0.4 — Config file permission check

If ~/.zuvo/config.toml exists: stat its mode. If mode > 0600 AND $ZUVO_LEADS_ALLOW_INSECURE_CONFIG is NOT 1: fail closed with exit 2 and a clear message (chmod 600 ~/.zuvo/config.toml or set the override env var for local dev). Rationale: world-readable config files containing API keys are a silent credential-exposure risk on shared systems.

Step 0.5 — Tool probes

Record each into providers_enabled[] or providers_degraded[]:

Check	Command	Required?
WebSearch	inspect tool list	required for discovery
WebFetch	inspect tool list	required
dig	command -v dig	required (DNS MX)
theHarvester	command -v theHarvester	optional
whois	command -v whois	optional
port 25	bash /dev/tcp/gmail-smtp-in.l.google.com/25 connect with 5s timeout	optional (SMTP)
GitHub API	curl -sS -o /dev/null -w '%{http_code}' https://api.github.com/rate_limit	optional
OSM Overpass	curl -sS -o /dev/null -w '%{http_code}' https://overpass-api.de/api/status	optional

When port 25 is blocked: record smtp_available: false once; Phase 3 will degrade emails to pattern-inferred/unverified without aborting.

Step 0.6 — SMTP override validation (if set)

If $ZUVO_SMTP_PROBE_CMD is set, validate:

• resolves (via realpath, symlinks followed) to an absolute path inside $REPO_ROOT/scripts/ or $FIXTURE_DIR
• does NOT contain any shell metacharacter: space, ;, |, &, $, backtick, (, ), newline, quote
• is executable (-x test)

If validation fails: exit 2. Invocation is argv-only — no eval, no $(...) expansion.

Step 0.7 — Acquire lock

Output dir defaults to docs/leads/ (or $ZUVO_LEADS_OUTPUT_DIR). Slug from --output or derived from filters.

Atomic lock acquisition:

if mkdir "$OUTDIR/.lock" 2>/dev/null; then
  # Store PID, host, AND the process's own start time (lstart) so PID reuse can be
  # detected later. `ps -o lstart= -p $$` captures when THIS process started.
  OWN_START=$(ps -o lstart= -p $$ | tr -s ' ' | sed 's/^ //; s/ $//')
  printf '%s\t%s\t%s\n' "$$" "$(hostname)" "$OWN_START" > "$OUTDIR/.lock/pid"
  # lock acquired
else
  # race or stale — run the stale-PID check below
  :
fi

Stale-lock detection (fixes gemini-1 TOCTOU + cursor-4 PID reuse):

PIDLINE=$(cat "$OUTDIR/.lock/pid" 2>/dev/null)
if [ -z "$PIDLINE" ]; then
  # TOCTOU: other process just ran mkdir but hasn't written pid yet.
  # Sleep + retry acquisition up to 3×, 200ms each.
  sleep 0.2; retry_acquisition
fi
IFS=$'\t' read -r PID HOST STORED_START <<<"$PIDLINE"
if [ "$HOST" != "$(hostname)" ]; then
  echo "lock held by another host: $HOST" >&2; exit 2
fi
if ! kill -0 "$PID" 2>/dev/null; then
  # process dead → reclaim
  rm -rf "$OUTDIR/.lock" && retry_acquisition
fi
# verify same process (PID reuse defense): compare current lstart to stored lstart.
# STORED_START was captured from `ps -o lstart=` at lock-creation time, not from
# `date +%s`, so a legitimate holder's start-time matches exactly across checks.
CURRENT_START=$(ps -o lstart= -p "$PID" 2>/dev/null | tr -s ' ' | sed 's/^ //; s/ $//')
if [ -n "$CURRENT_START" ] && [ "$CURRENT_START" !=  ]; 
  
   -rf  && retry_acquisition

  >&2;  2

Step 0.8 — Signal trap (fixes gemini-2 SIGTERM orphan)

Install trap on INT TERM HUP EXIT. The handler is idempotent: on first invocation it (1) flushes the in-memory checkpoint buffer to JSONL, (2) marks the run status: partial-user-stop in the companion .meta.json tmp file, (3) removes $OUTDIR/.lock/. Subsequent signals see the handler already ran and no-op.

Step 0.9 — Resume check

If --resume: read $OUTDIR/.checkpoint-<slug>.jsonl. Validate the LAST line with jq -e '.' <<< "$LASTLINE". If parse succeeds → retain the record, resume from the record after it. If parse fails → truncate the malformed last line, resume from the record before it. Do NOT blindly truncate (fixes gemini-3 — would lose a cleanly written final record on SIGINT).

If --resume without a checkpoint: exit 2 (via echo ... >&2; exit 2 — NOT exit 2 "msg"; bash exit does not accept a message argument) with clear message.

---

Phase 1 — Company Discovery (enrichment mode skips)

Dispatch company-finder agent per env-compat.md. Input: filters + providers_enabled. Agent returns candidate_companies records. Orchestrator serializes the result into $OUTDIR/.checkpoint-<slug>.jsonl using one line per company.

CHECKPOINT 1: print a summary table (company_name, domain, country, industry_tag) with counts. In interactive mode, prompt continue / narrow / stop. In --no-interactive: log [AUTO-CHECKPOINT] Phase 1 → continue with N companies and proceed. User chooses narrow → re-prompt for revised filter and re-dispatch.

---

Phase 2 — Contact Discovery (per company, max 3 parallel)

Dispatch contact-extractor once per candidate company. Batch of 3 at a time; wait for the batch to return before dispatching the next 3 (parallel-agent cap from pentest pattern).

Agents return results via agent reply (no file writes). The orchestrator merges all contact-extractor outputs serially into the in-memory candidate list and writes checkpoint lines. Agents NEVER write the checkpoint, output, or any file (CQ21).

Every 10 records, flush to .checkpoint-<slug>.jsonl (append, atomic via >> wrapped in a per-run exclusive lock on the checkpoint itself — one writer at a time because serialization is orchestrator-only).

CHECKPOINT 2: per-company contact counts summary + option continue / narrow / stop.

If --max-results cap is reached mid-Phase-2: stop dispatch, set status: complete-at-cap in meta, proceed to Phase 3.

---

Phase 3 — Email Synthesis + Verification (inline, orchestrator-owned)

For each contact with email: null but full_name and company_domain present:

1. Generate top-3 pattern candidates: first@, first.last@, flast@ (NFC-normalized, lowercase, stripped of diacritics for ASCII fallback).
2. dig MX <domain> (5s timeout). If no MX: label all candidates not-found.
3. If MX present AND smtp_available: true: run catch-all probe first: smtp_probe "$domain" "zzz9999-$(openssl rand -hex 4)@$domain" (see lead-source-registry.md for the canonical probe function). If accepted → domain is catch-all → label all emails from domain catch-all.
4. Otherwise probe each pattern candidate; first accepted → label verified (unless catch-all from step 3); else unverified or pattern-inferred.
5. For contacts with existing email_confidence: llm-inferred: NEVER promote to verified or unverified regardless of SMTP result — it stays llm-inferred per spec SC4.

SMTP invocation override: if $ZUVO_SMTP_PROBE_CMD is set (validated in Step 0.6), invoke it via argv only instead of the inline bash probe. No eval, no $(). The override uses bash's built-in /dev/tcp/host/25 rather than the nc binary because macOS BSD nc and GNU/Nmap ncat have incompatible flags.

---

Phase 4 — LLM Extraction Validation (inline)

For every record with email_confidence: llm-inferred: verify the email string does NOT appear verbatim in the source HTML. If it DOES appear verbatim → upgrade to unverified (promotion is safe — the address really was in the page, just not initially confirmed). If not → retain llm-inferred. Never promote llm-inferred directly to verified.

---

Phase 5 — Dedup + GDPR Flagging

Dispatch lead-validator agent (blind, no Bash) with the merged candidate list plus the rules object (EU/EEA country list, personal email domains, role-address locals).

Receive back labeled records with raw_key_email, raw_key_linkedin, raw_key_name_domain, quarantine flags, gdpr_flag, confidence tiers.

Apply canonicalize_dedup_key() ONCE in the orchestrator (single source of truth for normalization — CQ19). Python subprocess:

python3 <<'PY' < raw_keys.tsv > canonical_keys.tsv
import sys, unicodedata, re
for line in sys.stdin:
    key = line.rstrip("\n")
    if not key: print(""); continue
    n = unicodedata.normalize("NFC", key).casefold()
    n = re.sub(r"\s+", " ", n).strip()
    n = re.sub(r"[.,\-_'\"/\\]", "", n)
    print(n)
PY

Deduplicate records: two records match iff ANY of the three canonical keys matches (null-vs-null = no match). The validator LABELS, the orchestrator DEDUPS — validator never performs cross-record dedup.

If --dedup-against <file> is supplied: load it, validate it conforms to lead-output-schema.md (required fields present, enum values valid), compute canonical keys for its records, and suppress any discovered records matching those keys.

GDPR phone stripping (orchestrator-owned, not agent-owned): for every record with gdpr_flag: eu-eea, if --gdpr-strict is active AND --keep-phones is NOT active: set phone: null.

Quarantined records (quarantine_reason non-null) are routed to $OUTDIR/.quarantine/<slug>.jsonl — NOT the main output.

---

Phase 6 — Write Output (atomic)

Build 4 artifacts in the SAME directory as the final targets (cross-filesystem rename is not atomic on POSIX):

1. $OUTDIR/<slug>.json.tmp — {"meta":{...}, "contacts":[...]} root shape
2. $OUTDIR/<slug>.csv.tmp — UTF-8 BOM, contact columns in schema order
3. $OUTDIR/<slug>.meta.json.tmp — run header (companion for CSV consumers)
4. $OUTDIR/<slug>.md.tmp — Markdown: ## Run Metadata + ## Contacts table
5. $OUTDIR/<slug>.audit.jsonl.tmp — append-only event log built during run

Then atomically mv *.tmp → * (same directory guarantees atomic rename). Only AFTER successful rename release the lock: rm -rf "$OUTDIR/.lock/" and delete .checkpoint-<slug>.jsonl.

If --gdpr-strict: also write $OUTDIR/<slug>.GDPR_NOTICE.txt with a legitimate- interest template (B2B outreach basis, opt-out contact, data retrieval date).

CQ5 — No PII in run log: the Run: TSV line appended in Phase 7 contains counts, verdicts, and provider names only. It does NOT interpolate any contact field values (no names, no emails, no phones). The event log in *.audit.jsonl references contact records by their deterministic record-id, never by name/email/phone.

---

Phase 7 — Run Log + Retrospective

Append to ~/.zuvo/runs.log per run-logger.md (13-field TSV, VERDICT one of COMPLETE, PARTIAL, DEGRADED, FAILED).

Run retrospective per retrospective.md protocol.

Optional: if adversarial-loop-docs.md is present and user wants output validation, run cross-model review on the emitted .json artifact.

Knowledge curation per knowledge-curate.md.

---

COMPLETION GATE CHECK

Before emitting the final block, verify:

[ ] Phase 0 tool probes recorded in meta.providers_enabled/providers_degraded
[ ] Lock acquired and released cleanly (no .lock/ remains)
[ ] Checkpoint .jsonl deleted on clean completion
[ ] All three output formats (CSV + JSON + Markdown) present, no .tmp remnants
[ ] Records labeled with email_confidence from enum; no llm-inferred promoted to verified
[ ] If --gdpr-strict: GDPR_NOTICE.txt written and eu-eea phones stripped (unless --keep-phones)
[ ] Run: TSV appended to ~/.zuvo/runs.log (no PII)
[ ] Retrospective appended

Run: <ISO-8601-Z>\tleads\t<project>\t<mode>\t<records>\t<VERDICT>\t<providers>\t<slug>\t<notes>\t<BRANCH>\t<SHA7>\t<INCLUDES>\t<TIER>

Final Output

docs/leads/YYYY-MM-DD-<slug>.{csv,json,md,meta.json,audit.jsonl} + optional GDPR_NOTICE.txt. User imports to CRM / outreach tool of choice.

Parallel-Agent Safety Invariants

1. Agents return results via agent reply text only — they never write files. The orchestrator is the sole writer. Two concurrent contact-extractor dispatches never collide on disk because neither touches the disk.
2. Validator LABELS, orchestrator DEDUPS. The validator agent emits raw key inputs; the orchestrator computes canonical keys and performs dedup serially. No cross-agent dedup race.
3. Lock files are atomic. mkdir .lock is atomic on POSIX. The .lock/pid file is written immediately after successful mkdir. TOCTOU between mkdir success and pid write is handled by sleep+retry on empty pid.
4. No file writes outside the output directory. Agents are restricted to Read (validator) or denylisted Bash (finder/extractor). theHarvester's /tmp/zuvo-leads-* scratch files are the only non-output-directory writes allowed, and they are created+read+deleted within a single agent invocation.