Event Prospecting
BrowserbaseOfficialCreated by browserbase
- Skill
- Workflow
- Business and productivity
- MIT
- Low risk
- Has scripts
AutoGineer summary
Written by AutoGineer from the skill’s own files, not by the author
This skill streamlines event preparation by automating the identification and research of conference speakers. It extracts speaker lists from event websites, filters companies based on a user-defined Ideal Customer Profile (ICP), and performs deep research on high-fit targets. The final output is a structured HTML report containing actionable insights, public links, and DM openers for each prospect, designed to help account executives prioritize their outreach efforts.
What it does
- Extracts speaker lists from various event platforms using automated detection.
- Filters companies against a user-provided ICP to identify high-potential leads.
- Performs deep research on ICP-fit companies and their respective speakers.
- Generates a person-first HTML report with company-grouped cards.
- Provides a CSV file ready for cold-outbound import.
- Creates one-click DM openers based on public signals and event context.
When to use it
- When you need to identify and rank leads at a specific conference.
- When preparing for an upcoming event to maximize networking efficiency.
- When you want to research event speakers to personalize your outreach.
- When building a target list from event sponsor or exhibitor pages.
Advantages
- Saves significant time by automating manual research and data extraction.
- Ensures outreach is focused on high-fit prospects based on your specific ICP.
- Provides context-rich insights that help craft personalized, relevant messages.
- Standardizes the prospecting workflow across different events and platforms.
Usage examples
- “find leads at {event}”
- The agent extracts speakers from the specified event URL, filters them by your ICP, and generates an HTML report of high-fit prospects.
- “research speakers at {event}”
- The agent performs deep research on speakers associated with companies that match your ICP, providing a rationale for why you should reach out.
- “prospect this conference”
- The agent initiates the full prospecting pipeline, from event platform detection to the final compilation of an outreach-ready report.
- “who should I meet at {event}”
- The agent identifies the most relevant speakers based on your profile and presents them in a ranked list with actionable outreach hooks.
Install
Download the skill as a ZIP:
https://mp-staging.autogineer.com/agent-skills/browserbase/event-prospecting/downloadUnzip it into the cross-client skills folder of your project:
mkdir -p .agents/skills && unzip event-prospecting.zip -d .agents/skills
Documentation by browserbase
Event Prospecting
Take a conference URL → get a ranked list of people the AE should talk to, with a "why reach out" rationale per person.
Required: BROWSERBASE_API_KEY env var and the browse CLI installed (npm install -g browse). Use browse cloud ... for API calls and browse open / browse get markdown for JS-heavy speaker pages.
Path rules: Always use the full literal path in all Bash commands — NOT ~ or $HOME (both trigger "shell expansion syntax" approval prompts). Resolve the home directory once and use it everywhere. When constructing subagent prompts, replace {SKILL_DIR} with the full literal path (typically /Users/jay/skills/skills/event-prospecting).
Output directory: All event prospecting output goes to ~/Desktop/{event_slug}_prospects_{YYYY-MM-DD-HHMM}/. Final deliverable is index.html (people grouped by company, ranked by company ICP), with companies.html and people.html (filterable) as alternate views, plus results.csv for cold-outbound import.
CRITICAL — Tool restrictions (applies to main agent AND all subagents):
All web searches: use
browse cloud search. NEVER use WebSearch.All page content extraction: use
node {SKILL_DIR}/scripts/extract_page.mjs "<url>". This script fetches viabrowse cloud fetch --output, parses title + meta tags + visible body text, and automatically falls back tobrowse get markdownwhen fetch fails or returns thin JS-rendered content. NEVER hand-roll abrowse cloud fetch | sedpipeline. NEVER use WebFetch.All research output: subagents write one markdown file per company OR per person to
{OUTPUT_DIR}/companies/{slug}.mdor{OUTPUT_DIR}/people/{slug}.mdusing bash heredoc. NEVER use the Write tool orpython3 -c. Seereferences/example-research.mdfor both file formats.Report compilation: use
node {SKILL_DIR}/scripts/compile_report.mjs {OUTPUT_DIR} --open.Subagents must use ONLY the Bash tool. No other tools allowed.
HARD TOOL-CALL CAPS: ICP triage = 1 call/company; deep research = 5 calls/company; person enrichment = 4 calls/person. See
references/workflow.mdfor enforcement detail.
CRITICAL — Anti-hallucination rules (applies to main agent AND all subagents):
NEVER infer
product_description,industry, or a person'srole_reasonfrom a site's fonts, framework, design system, or typography. These are cosmetic and say nothing about what the company sells or what the person does.NEVER let the user's own ICP leak into a target's description. If you don't know what the target does, write
Unknown— do not pattern-match them onto the ICP.product_descriptionMUST quote or paraphrase a specific phrase fromextract_page.mjsoutput. If none of TITLE/META/OG/HEADINGS/BODY yield a recognizable product statement, writeUnknown — homepage content not accessibleand capicp_fit_scoreat 3.A person's
hookMUST quote or paraphrase a specific finding from abrowse cloud searchresult (podcast title, blog headline, GitHub repo, talk abstract). If no public signal exists in the last 6 months, fall back to event-context (their talk title at this event).
CRITICAL — Minimize permission prompts:
Subagents MUST batch ALL file writes into a SINGLE Bash call using chained heredocs. One Bash call = one permission prompt.
Batch ALL searches and ALL fetches into single Bash calls using
&&chaining.
Pipeline Overview
Follow these 10 steps in order. Do not skip steps or reorder.
Setup — output dir + clean slate
Load profile — read
profiles/{user_slug}.jsonRecon — detect event platform
Extract people —
people.jsonlGroup by company —
seed_companies.txtICP triage — fast company-level scoring (1 call/company)
Filter — companies with
icp_fit_score >= --icp-thresholdDeep research — full Plan→Research→Synthesize on ICP fits
Enrich speakers — ask user: ICP-fit only (default) or all speakers
Compile report — HTML + CSV, open in browser
The user invokes the skill with a URL like /event-prospecting <URL>. Parse EVENT_URL from that invocation message. Defaults: DEPTH=deep, ICP_THRESHOLD=6. The USER_SLUG (ICP profile) is auto-resolved in Step 1 from whatever profile files exist locally — there is no built-in default profile. Do NOT ask the user to confirm the URL — they already gave you it.
Step 0: Setup Output Directory
Derive the output directory from the URL the user gave you. Do NOT hardcode any event name.
# EVENT_URL came from the invocation message (whatever the user typed after `/event-prospecting`)
EVENT_SLUG=$(node -e 'const h = new URL(process.argv[1]).hostname.replace(/^www\./,""); console.log(h.split(".")[0])' "$EVENT_URL")
TIMESTAMP=$(date +%Y-%m-%d-%H%M)
OUTPUT_DIR=/Users/jay/Desktop/${EVENT_SLUG}_prospects_${TIMESTAMP}
mkdir -p "$OUTPUT_DIR/companies" "$OUTPUT_DIR/people"Use the full literal home path — never ~ or $HOME. Pass {OUTPUT_DIR} as the full literal path to all subagent prompts.
Step 1: Load User Profile
The profile defines the ICP that ICP triage and deep research score against. Load from {SKILL_DIR}/profiles/{user_slug}.json (interchangeable across all GTM skills — same shape as company-research). example.json is a template, not a real profile — never use it.
DO NOT look outside {SKILL_DIR}/profiles/ for profiles — never reach into other skills' directories. If a profile is needed elsewhere, the user copies it explicitly.
Resolution order:
If the user invoked with
--user-company <slug>, use that slug.Else, list
profiles/*.jsonexcludingexample.json. If exactly one profile exists, use it (and tell the user which one). If multiple exist, ask the user (plain chat) which one.If zero profiles exist, fail loudly and instruct the user to create one (copy
profiles/example.jsontoprofiles/<your_slug>.jsonand fill it in, or run the company-research skill which builds one automatically).
PROFILES=$(ls {SKILL_DIR}/profiles/*.json 2>/dev/null | xargs -n1 basename | sed 's/\.json$//' | grep -v '^example$')
COUNT=$(echo "$PROFILES" | grep -c .)
if [ -z "$USER_SLUG" ]; then
if [ "$COUNT" -eq 0 ]; then
echo "No profiles found in {SKILL_DIR}/profiles/. Copy profiles/example.json to profiles/<your_slug>.json and fill it in, or run the company-research skill to build one."
exit 1
elif [ "$COUNT" -eq 1 ]; then
USER_SLUG=$PROFILES
echo "Using the only profile available: ${USER_SLUG}"
else
echo "Multiple profiles found:"
echo "$PROFILES" | sed 's/^/ - /'
echo "Re-invoke with --user-company <slug> to pick one."
exit 1
fi
fi
test -f {SKILL_DIR}/profiles/${USER_SLUG}.json || {
echo "Profile not found: profiles/${USER_SLUG}.json"
exit 1
}
cat {SKILL_DIR}/profiles/${USER_SLUG}.jsonThe profile yields: company, product, icp_description, existing_customers. These get embedded verbatim in every subagent prompt downstream.
Step 2: Recon
Detect the event platform and extraction strategy. One command:
node {SKILL_DIR}/scripts/recon.mjs {EVENT_URL} {OUTPUT_DIR}Writes {OUTPUT_DIR}/recon.json with platform, strategy, and (for Next.js) nextDataPaths. See references/event-platforms.md for the platform catalog and detection priority.
Expected outcomes:
Stripe Sessions class (Next.js):
platform: "next-data", 1-3 pathsSessionize:
platform: "sessionize"Lu.ma / Eventbrite:
platform: "luma" | "eventbrite"Anything else:
platform: "custom",strategy: "markdown"(best-effort fallback)
Step 3: Extract People
node {SKILL_DIR}/scripts/extract_event.mjs {OUTPUT_DIR} --user-company {USER_SLUG}Reads recon.json, dispatches to the platform-specific extractor, writes people.jsonl (one speaker per line) and seed_companies.txt (deduped companies).
The --user-company flag also drops the host-org's own employees (a Stripe-hosted event drops Stripe employees) and the user's own employees from the speaker list — those aren't prospects.
Sanity-check the output:
wc -l {OUTPUT_DIR}/people.jsonl {OUTPUT_DIR}/seed_companies.txt
head -3 {OUTPUT_DIR}/people.jsonlIf people.jsonl is empty or under ~10 lines, recon picked the wrong platform — see references/event-platforms.md and re-run with adjusted strategy.
Step 4: Group by Company
extract_event.mjs emits seed_companies.txt already (one company per line, deduped, sorted). This step is informational — verify the count looks reasonable before fanning out:
wc -l {OUTPUT_DIR}/seed_companies.txtExpected: roughly 0.4-0.6× the speaker count (most events have ~2 speakers per company on average, some companies send 5+, many send 1).
Step 5: ICP Triage
Fast pass — one tool call per company, no deep research. Score every company in seed_companies.txt against the user's ICP and write a thin triage stub to companies/{slug}.md. Companies with icp_fit_score >= --icp-threshold (default 6) advance to Step 7's deep research; the rest stay as triage stubs.
Dispatch pattern: split seed_companies.txt into batches of ~10 and fan out N subagents in a SINGLE Agent batch (multiple Agent tool calls in one message). Each subagent runs the prompt from references/workflow.md → "ICP Triage" section. Hard cap: 1 tool call per company (just extract_page.mjs on the homepage), enforced via the # browse call N/1 comment pattern.
# Build batch files: each batch line is "name|guessed_homepage|slug".
# extract_event.mjs only emits company NAMES (no URLs), so we slugify and guess
# https://{slug-without-spaces}.com as the canonical homepage. The triage subagent
# is allowed to write product_description: "Unknown — homepage content not accessible"
# and cap score at 3 if the guessed URL 404s — that's the documented fallback in
# workflow.md (rule 3 of the ICP Triage prompt). Burning a real browse cloud search to
# discover the URL would bust the 1-call-per-company HARD CAP.
node -e '
const fs = require("fs");
const slugify = (s) => (s || "").toLowerCase().replace(/[^a-z0-9]+/g, "-").replace(/^-+|-+$/g, "");
const seed = fs.readFileSync("{OUTPUT_DIR}/seed_companies.txt", "utf-8").split("\n").filter(Boolean);
const lines = seed.map(c => {
const slug = slugify(c);
const guessedHost = c.toLowerCase().replace(/[^a-z0-9]/g, "");
return `${c}|https://${guessedHost}.com|${slug}`;
});
fs.writeFileSync("{OUTPUT_DIR}/_seed_with_urls.txt", lines.join("\n") + "\n");
'
# Split into ~10-company batches
split -l 10 {OUTPUT_DIR}/_seed_with_urls.txt {OUTPUT_DIR}/_batch_triage_
# Count batches → number of subagents to dispatch (cap at 6 per message; second wave for the rest)
ls {OUTPUT_DIR}/_batch_triage_* | wc -lThen in a single message, dispatch one Agent call per batch (up to 6 in parallel; subsequent waves after the first returns). Each Agent gets the prompt from references/workflow.md → "ICP Triage" with these substitutions before sending:
{SKILL_DIR}→ full literal skill path (e.g./Users/jay/skills/skills/event-prospecting){OUTPUT_DIR}→ full literal output path{USER_COMPANY},{USER_PRODUCT},{ICP_DESCRIPTION}→ from the loaded profile{EVENT_NAME}→recon.json.title{COMPANY_LIST}→ contents of the batch file (e.g.cat {OUTPUT_DIR}/_batch_triage_aa){TOTAL}→ number of lines in this batch (substitute into# browse call N/{TOTAL})
Agent dispatch (skeleton, repeat per batch in one message):
Agent(
description: "ICP triage batch aa",
prompt: <ICP Triage prompt from workflow.md with all placeholders substituted>,
subagent_type: "general-purpose"
)
Agent(
description: "ICP triage batch ab",
prompt: <same prompt template, COMPANY_LIST swapped to batch ab>,
subagent_type: "general-purpose"
)
... up to 6 per messageAfter all subagents return, verify every company in seed_companies.txt has a corresponding companies/{slug}.md:
ls {OUTPUT_DIR}/companies/*.md | wc -l
# Should equal `wc -l {OUTPUT_DIR}/seed_companies.txt`Clean up the batch files: rm {OUTPUT_DIR}/_batch_triage_*.
Step 6: Filter by ICP Threshold
Read each companies/*.md frontmatter, keep those with icp_fit_score >= 6 (or whatever --icp-threshold is). Write the surviving company slugs to {OUTPUT_DIR}/icp_fits.txt:
THRESHOLD=6 # from --icp-threshold flag
for f in {OUTPUT_DIR}/companies/*.md; do
score=$(awk '/^icp_fit_score:/{print $2; exit}' "$f")
if [ -n "$score" ] && [ "$score" -ge "$THRESHOLD" ]; then
basename "$f" .md
fi
done > {OUTPUT_DIR}/icp_fits.txt
wc -l {OUTPUT_DIR}/icp_fits.txtExpected: 20-40% of seed_companies.txt. If the survival rate is < 10%, the threshold may be too high or the ICP description too narrow — surface a warning to the user.
Step 7: Deep Research
Full Plan→Research→Synthesize on ICP-fit companies only. Hard cap: 5 tool calls per company (homepage extract + 2-3 sub-question searches + 1-2 supplementary fetches). Subagents OVERWRITE the existing companies/{slug}.md triage stub with the richer deep-research version (frontmatter triage_only: false).
Dispatch pattern: split icp_fits.txt into batches of ~5 (deep mode default) and fan out one Agent per batch in a SINGLE message (up to 6 Agents per message). Each Agent gets the prompt from references/workflow.md → "Deep Research" with these substitutions:
{SKILL_DIR},{OUTPUT_DIR},{USER_COMPANY},{USER_PRODUCT},{ICP_DESCRIPTION}{EVENT_NAME}(fromrecon.json.title),{EVENT_CONTEXT}(track / topic, manually inferred from the event homepage){COMPANY_LIST}→ contents of the batch file (each lineslug|website)
# Build {company-slug|website} pairs by reading frontmatter from each triage stub
while read slug; do
website=$(awk '/^website:/{print $2; exit}' {OUTPUT_DIR}/companies/${slug}.md)
echo "${slug}|${website}"
done < {OUTPUT_DIR}/icp_fits.txt > {OUTPUT_DIR}/_deep_targets.txt
# Split into ~5-company batches (deep mode)
split -l 5 {OUTPUT_DIR}/_deep_targets.txt {OUTPUT_DIR}/_batch_deep_
ls {OUTPUT_DIR}/_batch_deep_* | wc -lAgent dispatch (skeleton, repeat per batch in one message):
Agent(
description: "Deep research batch aa",
prompt: <Deep Research prompt from workflow.md with all placeholders substituted; COMPANY_LIST = cat _batch_deep_aa>,
subagent_type: "general-purpose"
)
Agent(
description: "Deep research batch ab",
prompt: <same template, COMPANY_LIST = cat _batch_deep_ab>,
subagent_type: "general-purpose"
)
... up to 6 per message; second wave after the first returnsAfter all subagents return, verify the deep-research files exist and have triage_only: false:
grep -l "triage_only: false" {OUTPUT_DIR}/companies/*.md | wc -l
# Should equal wc -l icp_fits.txtStep 8: Enrich Speakers
Per person: harvest LinkedIn URL, recent activity (podcast / blog / talk / GitHub / X), and write people/{slug}.md. Hard cap: 4 tool calls per person, three lanes:
browse cloud search "{name} {company} linkedin"(always)browse cloud search "{name} podcast OR talk OR blog 2026"(deep+)browse cloud search "{name} github"(deeper)browse cloud search "{name} site:x.com OR site:twitter.com"(deeper, best-effort)
Quick mode: skip Step 8 entirely. Deep mode: lanes 1-2. Deeper mode: lanes 1-4.
Step 8a — Ask the user: scope of enrichment
Before dispatching, compute the two candidate counts and ask the user to choose. The default is ICP-fit only (faster, cheaper, what most users want); enriching every speaker is opt-in because cost scales linearly with people enriched.
TOTAL=$(wc -l < {OUTPUT_DIR}/people.jsonl)
ICP_FITS=$(node -e '
const fs = require("fs");
const fits = new Set(fs.readFileSync("{OUTPUT_DIR}/icp_fits.txt", "utf-8").split("\n").filter(Boolean));
const slug2name = {};
for (const slug of fits) {
const md = fs.readFileSync(`{OUTPUT_DIR}/companies/${slug}.md`, "utf-8");
const m = md.match(/^company_name:\s*(.+)$/m);
if (m) slug2name[slug] = m[1].trim();
}
const want = new Set(Object.values(slug2name).map(s => s.toLowerCase()));
const ppl = fs.readFileSync("{OUTPUT_DIR}/people.jsonl","utf-8").split("\n").filter(Boolean).map(JSON.parse);
console.log(ppl.filter(p => p.company && want.has(p.company.toLowerCase())).length);
')
# Lanes per person: 2 (deep) or 4 (deeper) — match {DEPTH}
LANES=2 # or 4 for deeper
echo "ICP fits: ${ICP_FITS} speakers × ${LANES} = $((ICP_FITS * LANES)) calls"
echo "All: ${TOTAL} speakers × ${LANES} = $((TOTAL * LANES)) calls"Then ask via AskUserQuestion — clean two-option choice with the quantified cost on each:
AskUserQuestion(questions: [
{
question: "Enrich which speakers?",
header: "Enrichment scope",
multiSelect: false,
options: [
{ label: "ICP fits only", description: "${ICP_FITS} speakers, ~$((ICP_FITS * LANES)) calls (recommended)" },
{ label: "All speakers", description: "${TOTAL} speakers, ~$((TOTAL * LANES)) calls" }
]
}
])Save the chosen scope as ENRICH_SCOPE=icp_fits or ENRICH_SCOPE=all. If the user picks "All speakers" and TOTAL × LANES > 600, print a warning and ask once more — that's a 10+ minute run with hundreds of tool calls.
Step 8b — Filter and batch
# Build _people_to_enrich.jsonl based on ENRICH_SCOPE
if [ "$ENRICH_SCOPE" = "all" ]; then
cp {OUTPUT_DIR}/people.jsonl {OUTPUT_DIR}/_people_to_enrich.jsonl
else
node -e '
const fs = require("fs");
const fits = new Set(fs.readFileSync("{OUTPUT_DIR}/icp_fits.txt", "utf-8").split("\n").filter(Boolean));
const slug2name = {};
for (const slug of fits) {
const md = fs.readFileSync(`{OUTPUT_DIR}/companies/${slug}.md`, "utf-8");
const m = md.match(/^company_name:\s*(.+)$/m);
if (m) slug2name[slug] = m[1].trim();
}
const wantNames = new Set(Object.values(slug2name).map(s => s.toLowerCase()));
const lines = fs.readFileSync("{OUTPUT_DIR}/people.jsonl", "utf-8").split("\n").filter(Boolean);
const keep = lines.filter(l => {
const p = JSON.parse(l);
return p.company && wantNames.has(p.company.toLowerCase());
});
fs.writeFileSync("{OUTPUT_DIR}/_people_to_enrich.jsonl", keep.join("\n") + "\n");
console.error(`Enriching ${keep.length} of ${lines.length} speakers`);
'
fi
# Split into ~5-person batches
split -l 5 {OUTPUT_DIR}/_people_to_enrich.jsonl {OUTPUT_DIR}/_batch_people_Then in a single message, dispatch one Agent call per batch (up to 6 per message) with the prompt from references/workflow.md → "Person Enrichment". Each subagent's prompt should include:
{SKILL_DIR},{OUTPUT_DIR},{DEPTH}(deep|deeper){USER_COMPANY},{USER_PRODUCT},{ICP_DESCRIPTION}{EVENT_NAME}(fromrecon.json.title){LANES}→2for deep mode,4for deeper mode (substituted into# browse call N/{LANES}){PEOPLE_BATCH}→ contents of_batch_people_aa(each line a JSON record frompeople.jsonl)
Agent dispatch (skeleton, repeat per batch in one message):
Agent(
description: "Person enrichment batch aa",
prompt: <Person Enrichment prompt from workflow.md with all placeholders substituted; PEOPLE_BATCH = cat _batch_people_aa>,
subagent_type: "general-purpose"
)
Agent(
description: "Person enrichment batch ab",
prompt: <same template, PEOPLE_BATCH = cat _batch_people_ab>,
subagent_type: "general-purpose"
)
... up to 6 per messageAfter all subagents return, verify the people files exist:
ls {OUTPUT_DIR}/people/*.md | wc -l
# Should equal wc -l _people_to_enrich.jsonlStep 9: Compile Report
Generate the company-grouped HTML index, alternate views, and CSV in one command:
node {SKILL_DIR}/scripts/compile_report.mjs {OUTPUT_DIR} --openThis generates:
{OUTPUT_DIR}/index.html— people grouped by company, ranked by company ICP score (opens in browser){OUTPUT_DIR}/people.html— filterable speaker list (alternate view){OUTPUT_DIR}/companies.html— ICP-ranked company table with attendees{OUTPUT_DIR}/results.csv— cold-outbound-ready spreadsheet
Then present a summary in chat:
## Event Prospecting Complete — {Event Name}
- **Total speakers extracted**: {count}
- **Unique companies**: {count}
- **ICP fits (score ≥ {threshold})**: {count}
- **Speakers enriched**: {count}
- **Score distribution** (companies):
- Strong fit (8-10): {count}
- Partial fit (5-7): {count}
- Weak fit (1-4): {count}
- **Report opened in browser**: {OUTPUT_DIR}/index.htmlShow the top 5 people cards as a markdown table sorted by company ICP score, then offer to:
Adjust
--icp-thresholdand re-run Steps 6-9Export the CSV to a CRM
Files
- .gitignore210 B
- ATTRIBUTION.mdAdded by AutoGineer966 B
- LICENSE.txt1.0 KiB
- SKILL.md21.6 KiB
- profiles/example.json170 B
- references/event-platforms.md7.7 KiB
- references/example-research.md8.7 KiB
- references/report-template.html7.9 KiB
- references/research-patterns.md17.3 KiB
- references/workflow.md21.0 KiB
- scripts/__fixtures__/stripe-snapshot.json258 B
- scripts/compile_report.mjsScript39.2 KiB
- scripts/extract_event.mjsScript8.3 KiB
- scripts/extract_page.mjsScript5.4 KiB
- scripts/package.json103 B
- scripts/recon.mjsScript4.2 KiB
references/event-platforms.md
Event-Prospecting — Platform Reference
Contents
Detection Priority — order recon.mjs probes
Next.js /
__NEXT_DATA__— Stripe Sessions classSessionize — public JSON API
Lu.ma — JSON-LD Event block
Eventbrite — JSON-LD Event block
Custom / Markdown Fallback — last resort
Adding a New Platform — contributor guide
Detection Priority
recon.mjs probes the event URL once via browse open + browse eval, then chooses the first matching platform from this list:
Next.js /
__NEXT_DATA__—document.getElementById('__NEXT_DATA__')returns a<script>tag.Sessionize —
<meta name="generator">content matches/sessionize/i.Lu.ma —
location.hostnamematches/lu\.ma/.Eventbrite —
<meta property="og:site_name">matches/eventbrite/i.JSON-LD Event — at least one
<script type="application/ld+json">block has@type === 'Event'.Custom / markdown fallback — none of the above; the extractor uses
browse get markdownand parses speaker blocks heuristically.
The order matters: Next.js sites often also embed JSON-LD, so probing __NEXT_DATA__ first gives us the structured data path before falling back to JSON-LD heuristics.
Next.js / __NEXT_DATA__
Detection signature
!!document.getElementById('__NEXT_DATA__')This script tag is emitted by every getServerSideProps / getStaticProps Next.js page. Its textContent is a JSON blob containing every prop hydrated into the React tree at build/request time — including the speaker list for an event microsite.
Extraction strategy — next-data-eval
recon.mjs walks the parsed JSON looking for arrays whose elements are objects with both a name-ish key AND a linkedin substring somewhere. It records the JSON path of every such array (e.g. .props.pageProps.featuredSpeakers.speakers.items) into recon.nextDataPaths. The Phase B extractor then runs ONE browse eval to harvest those arrays and union them into a single people list.
Sample output shape (Stripe Sessions 2026)
{
"platform": "next-data",
"strategy": "next-data-eval",
"nextDataPaths": [
".props.pageProps.featuredSpeakers.speakers.items",
".props.pageProps.moreSpeakers.speakers.items"
]
}A typical speaker object inside one of those arrays:
{
"name": "Patrick Collison",
"title": "CEO and Co-founder",
"companyName": "Stripe",
"linkedInProfile": "https://www.linkedin.com/in/patrickcollison/",
"bio": "..."
}Known gotchas
The walker also matches
talks[N].speakersarrays (a denormalized re-listing of the same speakers per session).recon.mjsfilters those out via regex so we don't double-count.Some Next sites lazy-load speakers AFTER hydration. The 2.5s
browse wait timeoutis usually enough; if a site fails extraction, bump the wait to 5s before declaring it a different platform.Field names vary across sites (
companyNamevscompanyvsorg,linkedInProfilevslinkedinUrl). The Phase B extractor normalizes via fallback chains.
Sessionize
Detection signature
<meta name="generator" content="Sessionize.com">Extraction strategy — sessionize-api (stub in v0.1; full implementation in a future phase)
Sessionize exposes a public read-only JSON API at https://sessionize.com/api/v2/{event_id}/view/Speakers. The event ID is in the page URL or embedded JS. v0.1 of recon.mjs only sets strategy: "sessionize-api" and emits the URL — no API discovery yet.
Sample output shape
{
"platform": "sessionize",
"strategy": "sessionize-api"
}Known gotchas
Some Sessionize-hosted pages bury the event ID behind a custom domain. We may need to scan the page for
sessionize.com/api/v2/...URLs and pull the ID from there.The Sessionize API returns a flat speaker list — much cleaner than scraping Next.js, when it works.
Lu.ma
Detection signature
/lu\.ma/.test(location.hostname)Lu.ma always serves on lu.ma (or rarely a custom CNAME); the hostname check is decisive.
Extraction strategy — json-ld (stub in v0.1)
Lu.ma embeds an Event JSON-LD block with attendee/speaker info, but the volume of structured data is event-dependent. v0.1 sets strategy: "json-ld" and defers actual extraction to Phase B+. The fallback markdown extractor handles Lu.ma pages reasonably well in the meantime.
Sample output shape
{
"platform": "luma",
"strategy": "json-ld"
}Known gotchas
Lu.ma often gates the full attendee list behind a login. Public-facing pages usually only show "featured" speakers, not the full list.
Some Lu.ma events are private;
recon.mjsshould NOT crash if__NEXT_DATA__isn't present and JSON-LD is empty — it falls through to the markdown strategy.
Eventbrite
Detection signature
<meta property="og:site_name" content="Eventbrite">Extraction strategy — json-ld (stub in v0.1)
Eventbrite emits standard Event JSON-LD on every public event page. Speakers are usually only in the prose body, not the structured data — Eventbrite is more of an RSVP platform than a speaker-directory platform. We may need to combine JSON-LD parsing with markdown extraction of the description body.
Sample output shape
{
"platform": "eventbrite",
"strategy": "json-ld"
}Known gotchas
Eventbrite event pages can be heavy. If
browse cloud fetchfails or returns thin content, usebrowse get markdowninstead.Most Eventbrite events do NOT publish a speaker list at all. This platform is low-yield for prospecting.
Custom / Markdown Fallback
Detection signature
None of the above match. recon.mjs sets platform: "custom" and strategy: "markdown".
Extraction strategy — markdown
The Phase B extractor calls browse get markdown, splits the output on heading boundaries (####, ###, ##), and treats each block as a candidate speaker:
Line 1: name (must start with capital letter)
Line 2: title/role
Line 3: company
Anywhere in the block:
linkedin.com/in/{handle}
This is a best-effort fallback. Coverage is typically 60-80% of the actual speaker list; field accuracy is lower than the structured paths.
Sample output shape
{
"platform": "custom",
"strategy": "markdown"
}Known gotchas
Many static event sites use cards (not headings) for speakers. The heading-split heuristic misses those entirely.
"Section title" lines (
## Speakers,## Schedule) get parsed as candidate speakers and need to be filtered downstream by checking for the LinkedIn pattern.If markdown extraction yields zero people, the pipeline should surface a "platform unsupported" error rather than emit an empty
people.jsonl.
Adding a New Platform
Add a detection branch in
recon.mjsprobe()after the existing ones. Pick a cheap signal (a meta tag, hostname, or a specific script tag) that's distinctive.Pick a strategy name — kebab-case verb-phrase like
sessionize-apiorjson-ld-events.Add an extractor branch in
extract_event.mjsthat handles the new strategy.Add a section to this file with: detection signature, extraction strategy, sample output shape, known gotchas.
Drop a fixture under
scripts/__fixtures__/{platform}-snapshot.jsoncapturing the expectedrecon.jsonshape so future refactors don't silently break extraction.
Keep the detection branches small. If a platform needs more than ~20 lines of detection logic, factor it out into scripts/detectors/{platform}.mjs and import.
Requirements and compatibility
Written for: Claude Code
Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta
“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.
Needs: Declares allowed tools, Names Claude Code tools, Needs an API key, Needs Python, Needs Node.js
The author says: Requires browse CLI (`npm install -g browse`) and BROWSERBASE_API_KEY env var. The same `browse` binary covers both API commands and JS-rendered page fallback.
Security
What our scanner noticed· Low risk
- Instructions that use the network
- Scripts that your agent may run
This skill includes scripts that your agent may run. Read them before you use it.
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Attribution and licence
- Created by
- browserbase
- Publisher
- Browserbase (Official)
- Source
- browserbase/skills · skills/event-prospecting · commit 6811ca3
- Licence
- MIT License (redistribution allowed)
- ATTRIBUTION.md (written by AutoGineer)
- Synced
AutoGineer is not affiliated with or endorsed by browserbase.
Download ZIP
The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download event-prospecting.zip