Agent skill
growth-engine
From ericosiu/ai-marketing-skills · 21 skills · 3,449 · pushed 2026-08-16
What it does when it runs
Read from the skill and the 6 files bundled beside it. A skill’s own description is written to be selected by an agent, so it describes the job and not the dependencies.
- Keys and connectors you must supply
- EMAIL_AUTH_TOKEN
- PIPELINE_AUTH_TOKEN
- RECRUITING_AUTH_TOKEN
- Hosts it reaches
- api.your-email-platform.com
- levelingup.beehiiv.com
- singlebrain.com
- www.singlegrain.com
- x.com
- your-dashboard.example.com
- Tool permissions it declares
- No
allowed-toolsin the frontmatter. It does act, so it runs under whatever permissions your session already grants. - Actions present in the files
- shellwrites files
Install it
View source on GitHub ↗git clone --depth 1 --filter=blob:none --sparse https://github.com/ericosiu/ai-marketing-skills.git /tmp/ai-marketing-skills git -C /tmp/ai-marketing-skills sparse-checkout set "growth-engine" mkdir -p ~/.claude/skills/growth-engine cp -R "/tmp/ai-marketing-skills/growth-engine/." ~/.claude/skills/growth-engine/
Picked up without a restart. A project skill of the same name is shadowed by your personal one. For one repository only, swap ~/.claude/skills for .claude/skills. Claude Code docs ↗
The folder is the same in every client that implements the format — 46 of them — so if yours is not above, only the destination changes.
Before you install: this skill will not complete its job on a bare agent. It needs EMAIL_AUTH_TOKEN, PIPELINE_AUTH_TOKEN, RECRUITING_AUTH_TOKEN, which you have to obtain separately.
The skill
Source on GitHub ↗Reproduced in full from ericosiu/ai-marketing-skills/blob/2eb0f34edb8d6111ca8b2930fed92413c9af7002/growth-engine/SKILL.md, which is licensed MIT (repository). 658 words, 20 headings.
Growth Engine
Preamble (runs on skill start)
# Version check (silent if up to date)
python3 telemetry/version_check.py 2>/dev/null || true
# Telemetry opt-in (first run only, then remembers your choice)
python3 telemetry/telemetry_init.py 2>/dev/null || true
Privacy: This skill logs usage locally to
~/.ai-marketing-skills/analytics/. Remote telemetry is opt-in only. No code, file paths, or repo content is ever collected. Seetelemetry/README.md.
Autonomous growth experimentation framework based on Karpathy's autoresearch pattern applied to marketing. Creates experiments with hypotheses, logs data points, runs statistical analysis (bootstrap CI + Mann-Whitney U), auto-promotes winners to a living playbook, and suggests next experiments. Supports batch mode (up to 10 variants simultaneously).
Usage
Use this skill when:
- Creating or managing A/B or multivariate experiments for any marketing channel
- Logging experiment data points after content is published or campaigns run
- Scoring experiments to determine statistical winners
- Checking the playbook for proven best practices before creating new content
- Generating weekly scorecards across all channels
- Monitoring campaign pacing and health
Do NOT use for:
- One-off content creation (use the playbook output as input, but don't run the engine)
- Non-experiment analytics or reporting
- Campaign setup in external platforms (this tracks experiments, not campaign config)
Commands
Create an experiment
python3 experiment-engine.py create \
--agent <agent_name> \
--hypothesis "What you expect to happen" \
--variable "<variable_name>" \
--variants '["variant_a", "variant_b"]' \
--metric "<primary_metric>" \
--cycle-hours 24
Add --batch-mode for 3-10 variant tests. Add --min-samples N to override auto-detection.
Log a data point
python3 experiment-engine.py log \
--agent <agent_name> \
--experiment-id <EXP-ID> \
--variant "<variant_name>" \
--metrics '{"metric_name": value}'
Score an experiment
python3 experiment-engine.py score --agent <agent_name> --experiment-id <EXP-ID>
Statuses: running → trending → keep (winner) or discard (loser)
Winners auto-promote to the playbook. Requires p < 0.05 AND ≥ 15% lift.
List experiments
python3 experiment-engine.py list --agent <agent_name> [--status running|trending|keep|discard]
Check the playbook
python3 experiment-engine.py playbook --agent <agent_name>
Always check the playbook before creating new content to apply proven best practices.
Suggest next experiments
python3 experiment-engine.py suggest --agent <agent_name>
Generate weekly scorecard
python3 autogrowth-weekly-scorecard.py [--weeks N] [--output file.md]
Check campaign pacing
python3 pacing-alert.py [--json]
Exit code 0 = on pace, 1 = alerts present.
Workflow
- Before creating content:
playbook→ apply proven rules - When publishing:
log→ record which variant was used and its metrics - Periodically:
score→ check if experiments have reached statistical significance - Weekly:
autogrowth-weekly-scorecard.py→ review all channels - After completing experiments:
suggest→ pick the next variable to test
Configuration
Required Environment Variables
| Variable | Description |
|---|---|
GROWTH_ENGINE_DATA_DIR | Data directory (default: ./data/experiments) |
GROWTH_ENGINE_AGENTS | Comma-separated agent names (default: content,email,linkedin,seo,blog) |
Optional Tuning
| Variable | Default | Description |
|---|---|---|
HIGH_VOLUME_AGENTS | content,email | Agents needing only 10 samples/variant |
LOW_VOLUME_AGENTS | seo,linkedin,blog | Agents needing 30 samples/variant |
P_WINNER | 0.05 | p-value threshold for winner |
P_TREND | 0.10 | p-value threshold for trending |
LIFT_WIN | 15.0 | Minimum % lift for keep decision |
BOOTSTRAP_ITERATIONS | 1000 | Bootstrap resamples for CI |
BATCH_MODE_MAX_VARIANTS | 10 | Max variants in batch mode |
Pacing Alert Variables
| Variable | Description |
|---|---|
PIPELINE_API_URL | Pipeline/CRM API endpoint |
PIPELINE_AUTH_TOKEN | Bearer token for pipeline API |
RECRUITING_API_URL | Recruiting API endpoint |
RECRUITING_AUTH_TOKEN | Bearer token for recruiting API |
EMAIL_API_URL | Email platform API base URL |
EMAIL_AUTH_TOKEN | Bearer token for email platform |
OUTBOUND_CAMPAIGNS | JSON: {"name": "campaign-id"} |
RECRUITING_CAMPAIGNS | JSON: {"name": "campaign-id"} |
DAILY_LEAD_TARGET | Leads/day target (default: 10) |
WEEKLY_CANDIDATE_TARGET | Candidates/week target (default: 400) |
Dependencies
pip install numpy scipy
Files bundled with it
These load only when the skill asks for them, so they cost nothing until it runs.
Other skills for the same job
Different authors, same problem. Matched on the words in the skill name, across every library in the catalogue except this one.
- growth-strategy by OpenClaudia · 664
- growth-loops by AIDevGTM · 252
- building-communication-engine by GTM-Strategist · 245
- growth-strategy by manojbajaj95 · 92
- personalization-engine by kenny589 · 63
- product-led-growth by beingsmit · 40
- growth-ops by shalintripathi · 7
- seo-growth by shalintripathi · 7
Need help setting it up?
This page tells you what growth-engine does and what it needs. Cheetah builds the agent setup it runs inside: data, CRM, sequencing and the guardrails.
Book a call →The directory stays free. There is nothing gated behind this.