About ftd-detector
FTD Detector is an agent skill that assesses Follow-Through Day signals after market corrections using William O'Neil's methodology. It analyzes S&P 500 and QQQ data, then reports a signal-quality score and suggested exposure guidance.
Key features
- 01Analyze S&P 500 and QQQ data
- 02Track correction and rally states
- 03Assess post-FTD market health
- 04Score signal quality from 0 to 100
- 05Generate JSON and Markdown reports
Use cases
- 01Assess bottom signals after a correction
- 02Review rally attempts and FTD confirmation
- 03Evaluate exposure after a market decline
MCP support
This is an agent skill, not an MCP server. The README does not describe an MCP connection or interface.
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ mphinance/ alpha-skills --skill ftd-detectorAfter installing, type/ftd-detectorin Claude Code to confirm it loaded.
Bundled files
References and scripts installed along with SKILL.md.
README.mdreferences/ftd_methodology.mdpost_ftd_guide.mdscripts/fmp_client.pyftd_detector.pypost_ftd_monitor.pyrally_tracker.pyreport_generator.pyscripts/tests/conftest.pyhelpers.pytest_fmp_client.pytest_post_ftd_monitor.pytest_rally_tracker.pyDetails
From the project READMEFTD Detector Skill
Purpose
Detect Follow-Through Day (FTD) signals that confirm a market bottom, using William O'Neil's proven methodology. Generates a quality score (0-100) with exposure guidance for re-entering the market after corrections.
Complementary to Market Top Detector:
- Market Top Detector = defensive (detects distribution, rotation, deterioration)
- FTD Detector = offensive (detects rally attempts, bottom confirmation)
When to Use This Skill
English:
- User asks "Is the market bottoming?" or "Is it safe to buy again?"
- User observes a market correction (3%+ decline) and wants re-entry timing
- User asks about Follow-Through Days or rally attempts
- User wants to assess if a recent bounce is sustainable
- User asks about increasing equity exposure after a correction
- Market Top Detector shows elevated risk and user wants bottom signals
Japanese:
- 「底打ちした?」「買い戻して良い?」
- 調整局面(3%以上の下落)からのエントリータイミング
- フォロースルーデーやラリーアテンプトについて
- 直近の反発が持続可能か評価したい
- 調整後のエクスポージャー拡大の判断
- Market Top Detectorが高リスク表示の後の底打ちシグナル確認
Difference from Market Top Detector
| Aspect | FTD Detector | Market Top Detector |
|---|---|---|
| Focus | Bottom confirmation (offensive) | Top detection (defensive) |
| Trigger | Market correction (3%+ decline) | Market at/near highs |
| Signal | Rally attempt → FTD → Re-entry | Distribution → Deterioration → Exit |
| Score | 0-100 FTD quality | 0-100 top probability |
| Action | When to increase exposure | When to reduce exposure |
Execution Workflow
Phase 1: Execute Python Script
Run the FTD detector script:
python3 skills/ftd-detector/scripts/ftd_detector.py --api-key $FMP_API_KEY
The script will:
- Fetch S&P 500 and QQQ historical data (60+ trading days) from FMP API
- Fetch current quotes for both indices
- Run dual-index state machine (correction → rally → FTD detection)
- Assess post-FTD health (distribution days, invalidation, power trend)
- Calculate quality score (0-100)
- Generate JSON and Markdown reports
API Budget: 4 calls (well within free tier of 250/day)
Phase 2: Present Results
Present the generated Markdown report to the user, highlighting:
- Current market state (correction, rally attempt, FTD confirmed, etc.)
- Quality score and signal strength
- Recommended exposure level
- Key watch levels (swing low, FTD day low)
- Post-FTD health (distribution days, power trend)
Phase 3: Contextual Guidance
Based on the market state, provide additional guidance:
If FTD Confirmed (score 60+):
- Suggest looking at leading stocks in proper bases
- Reference CANSLIM screener for candidate stocks
- Remind about position sizing and stops
If Rally Attempt (Day 1-3):
- Advise patience, do not buy ahead of FTD
- Suggest building watchlists
If No Correction:
- FTD analysis is not applicable in uptrend
- Redirect to Market Top Detector for defensive signals
State Machine
NO_SIGNAL → CORRECTION → RALLY_ATTEMPT → FTD_WINDOW → FTD_CONFIRMED
↑ ↓ ↓ ↓
└── RALLY_FAILED ←─────────────┘ FTD_INVALIDATED
| State | Definition |
|---|---|
| NO_SIGNAL | Uptrend, no qualifying correction |
| CORRECTION | 3%+ decline with 3+ down days |
| RALLY_ATTEMPT | Day 1-3 of rally from swing low |
| FTD_WINDOW | Day 4-10, waiting for qualifying FTD |
| FTD_CONFIRMED | Valid FTD signal detected |
| RALLY_FAILED | Rally broke below swing low |
| FTD_INVALIDATED | Close below FTD day's low |
Quality Score (0-100)
| Score | Signal | Exposure |
|---|---|---|
| 80-100 | Strong FTD | 75-100% |
| 60-79 | Moderate FTD | 50-75% |
| 40-59 | Weak FTD | 25-50% |
| <40 | No FTD / Failed | 0-25% |
Prerequisites
- FMP API Key: Required. Set
FMP_API_KEYenvironment variable or pass via--api-keyflag. - Python 3.8+: With
requestslibrary installed. - API Budget: 4 calls per execution (well within FMP free tier of 250/day).
Output Files
- JSON:
ftd_detector_YYYY-MM-DD_HHMMSS.json - Markdown:
ftd_detector_YYYY-MM-DD_HHMMSS.md
Reference Documents
skills/ftd-detector/references/ftd_methodology.md
- O'Neil's FTD rules in detail
- Rally attempt mechanics and day counting
- Historical FTD examples (2020 March, 2022 October)
skills/ftd-detector/references/post_ftd_guide.md
- Post-FTD distribution day failure rates
- Power Trend definition and conditions
- Success vs failure pattern comparison
When to Load References
- First use: Load
skills/ftd-detector/references/ftd_methodology.mdfor full understanding - Post-FTD questions: Load
skills/ftd-detector/references/post_ftd_guide.md - Regular execution: References not needed - script handles analysis