Technical Analyst Skill for Claude

Technical Analyst

Overview

This skill enables comprehensive technical analysis of weekly price charts. Analyze chart images to identify trends, support and resistance levels, moving average relationships, volume patterns, and develop probabilistic scenarios for future price movement. All analysis is conducted objectively using only chart data, without influence from news, fundamentals, or market sentiment.

When to Use

• User provides weekly chart images (stocks, indices, crypto, forex) and requests technical analysis
• Need to identify trend direction, strength, and potential reversal points
• Looking for support/resistance levels and key price zones
• Want probabilistic scenario planning with specific price targets
• Require objective chart-based analysis without fundamental or news considerations

Prerequisites

• Chart Images: User must provide weekly timeframe chart images for analysis
• No API Keys Required: This skill analyzes user-provided images; no external data fetches

Output

This skill generates markdown analysis reports saved to the reports/ directory:

• File format: [SYMBOL]_technical_analysis_[YYYY-MM-DD].md
• Content: Comprehensive analysis including trend, S/R levels, MA analysis, volume, patterns, and 2-4 probabilistic scenarios with targets and invalidation levels

Core Principles

• Pure Chart Analysis: Base all conclusions exclusively on technical data visible in the chart
• Systematic Approach: Follow a structured methodology for each chart analysis
• Objective Assessment: Avoid subjective bias; focus on observable patterns and data
• Probabilistic Scenarios: Express future possibilities as probability-weighted scenarios
• Sequential Processing: Analyze each chart individually and document findings immediately

Analysis Workflow

Step 1: Receive Chart Images

When the user provides one or more weekly chart images for analysis:

• Confirm receipt of all chart images
• Identify the number of charts to analyze
• Note any specific focus areas requested by the user
• Proceed to analyze charts sequentially, one at a time

Step 2: Load Technical Analysis Framework

Before beginning analysis, read the comprehensive technical analysis methodology:

Read: references/technical_analysis_framework.md

This reference contains detailed guidance on:

• Trend analysis and classification
• Support and resistance identification
• Moving average interpretation
• Volume analysis
• Chart patterns and candlestick analysis
• Scenario development and probability assignment
• Analysis discipline and objectivity

Step 3: Analyze Each Chart Systematically

For each chart image, conduct a systematic analysis following this sequence:

3.1 Trend Analysis

• Identify trend direction (uptrend, downtrend, sideways)
• Assess trend strength (strong, moderate, weak)
• Note trend duration and potential exhaustion signals
• Examine higher highs/lows or lower highs/lows pattern

3.2 Support and Resistance Analysis

• Mark significant horizontal support levels
• Mark significant horizontal resistance levels
• Identify trendline support/resistance
• Note any support-resistance role reversals
• Assess confluence zones where multiple S/R levels align

3.3 Moving Average Analysis

• Determine price position relative to 20-week, 50-week, and 200-week MAs
• Assess MA alignment (bullish, bearish, or neutral configuration)
• Note MA slope (rising, falling, flat)
• Identify any recent or pending MA crossovers
• Observe MAs acting as dynamic support or resistance

3.4 Volume Analysis

• Assess overall volume trend (increasing, decreasing, stable)
• Identify volume spikes and their context (at support/resistance, on breakouts)
• Check for volume confirmation or divergence with price
• Note any volume climax or exhaustion patterns

3.5 Chart Patterns and Price Action

• Identify any reversal patterns (hammers, shooting stars, engulfing patterns, etc.)
• Identify any continuation patterns (flags, triangles, etc.)
• Note significant candlestick formations
• Observe recent breakouts or breakdowns

3.6 Synthesize Observations

• Integrate all technical elements into coherent current assessment
• Identify the most significant factors influencing the chart
• Note any conflicting signals or ambiguity
• Establish key levels that will determine future direction

Step 4: Develop Probabilistic Scenarios

For each analyzed chart, create 2-4 distinct scenarios for future price movement:

Scenario Structure

Each scenario must include:

• Scenario Name: Clear, descriptive title (e.g., "Bull Case: Breakout Above Resistance")
• Probability Estimate: Percentage likelihood based on technical factors (must sum to 100% across all scenarios)
• Description: What this scenario entails and how it would unfold
• Supporting Factors: Technical evidence supporting this scenario (minimum 2-3 factors)
• Target Levels: Expected price levels if scenario plays out
• Invalidation Level: Specific price level that would negate this scenario

Typical Scenario Framework

• Base Case Scenario (40-60%): Most likely outcome based on current structure
• Bull Case Scenario (20-40%): Optimistic scenario requiring upside breakout
• Bear Case Scenario (20-40%): Pessimistic scenario requiring downside breakdown
• Alternative Scenario (5-15%): Lower probability but technically plausible outcome

Adjust probabilities based on strength of supporting technical factors. Ensure probabilities are realistic and sum to 100%.

Step 5: Generate Analysis Report

For each chart analyzed, create a comprehensive markdown report using the template structure:

Read and use as template: assets/analysis_template.md

The report must include all sections:

• Chart Overview
• Trend Analysis
• Support and Resistance Levels
• Moving Average Analysis
• Volume Analysis
• Chart Patterns and Price Action
• Current Market Assessment
• Scenario Analysis (2-4 scenarios with probabilities)
• Summary

10. Disclaimer

File Naming Convention: Save each analysis as [SYMBOL]_technical_analysis_[YYYY-MM-DD].md

Example: SPY_technical_analysis_2025-11-02.md

Step 6: Repeat for Multiple Charts

If multiple charts are provided:

• Complete the full analysis workflow (Steps 3-5) for the first chart
• Save the analysis report
• Proceed to the next chart
• Repeat until all charts have been analyzed and documented

Do not batch analyses. Complete and save each report before moving to the next chart.

Quality Standards

Objectivity Requirements

• Base all analysis strictly on observable chart data
• Avoid incorporating external information (news, fundamentals, sentiment)
• Do not use subjective language like "I think" or "I feel"
• Express uncertainty clearly when signals are ambiguous
• Present both bullish and bearish possibilities to avoid confirmation bias

Completeness Requirements

• Address all sections of the analysis template
• Provide specific price levels for support, resistance, and targets
• Justify probability estimates with technical factors
• Include invalidation levels for each scenario
• Note any limitations or caveats to the analysis

Clarity Requirements

• Use precise technical terminology correctly
• Write in clear, professional language
• Structure information logically
• Include specific price levels (not vague descriptions)
• Make scenarios distinct and mutually exclusive

Example Usage Scenarios

Example 1: Single Chart Analysis

User: "Please analyze this weekly chart of the S&P 500"
[Provides chart image]

Analyst:
1. Confirms receipt of chart image
2. Reads technical_analysis_framework.md for methodology
3. Conducts systematic analysis (trend, S/R, MA, volume, patterns)
4. Develops 3 scenarios with probabilities (e.g., 55% bullish continuation, 30% consolidation, 15% reversal)
5. Generates comprehensive analysis report using template
6. Saves as SPY_technical_analysis_2025-11-02.md

Example 2: Multiple Chart Analysis

User: "Analyze these three charts: Bitcoin, Ethereum, and Nasdaq"
[Provides 3 chart images]

Analyst:
1. Confirms receipt of 3 charts
2. Reads technical_analysis_framework.md
3. Analyzes Bitcoin chart completely → Generates report → Saves as BTC_technical_analysis_2025-11-02.md
4. Analyzes Ethereum chart completely → Generates report → Saves as ETH_technical_analysis_2025-11-02.md
5. Analyzes Nasdaq chart completely → Generates report → Saves as NDX_technical_analysis_2025-11-02.md
6. Notifies user that all three analyses are complete

Example 3: Focused Analysis Request

User: "I'm particularly interested in whether this stock will break above resistance. Analyze the chart."
[Provides chart image]

Analyst:
1. Conducts full systematic analysis
2. Pays special attention to resistance levels and breakout probability
3. Develops scenarios with emphasis on breakout vs. rejection possibilities
4. Assigns probabilities based on volume, trend strength, and proximity to resistance
5. Generates complete report with focused scenario analysis

Contrarian Confirmation Mode (Shapiro Step 3)

This is an ADDITIVE mode, separate from the pure chart-analysis workflow

above. It activates only on an explicit contrarian-confirmation request —

typically after cot-contrarian-detector (step 1) has flagged a market

crowded and, optionally, news-reaction-failure-analyzer (step 2) has

shown it failed to react to favorable news. A plain "analyze this chart"

request still runs the original workflow (Steps 1-6 above) unchanged.

Purpose

Confirm whether the WEEKLY chart is showing price-action evidence that a

crowded market is reversing: a weekly key reversal, an intraweek failed

extreme, or a confirmed-then-rejected failed breakout — vetoed by a

continuation check (a new closing extreme in the crowd's direction more

recent than any signal found). See

references/contrarian-confirmation-checklist.md for the full,

word-for-word methodology shared by both chart mode and script mode.

Inputs

• Crowd direction: CROWDED_LONG or CROWDED_SHORT — from the user,

or from a prior cot-contrarian-detector report.

• Chart image (primary): a user-supplied weekly chart, read the same

way as the existing workflow, using the strict definitions below.

• Script fallback (data-driven): scripts/check_weekly_price_action.py

when no chart is supplied, or when an auditable, deterministic result is

wanted instead of (or alongside) a visual read.

The Three Checks + Swing Levels

• Weekly key reversal: a new swing-lookback extreme (default 13

weeks) followed by a close through the prior week's opposite level.

• Failed extreme: an intraweek poke past the prior extreme-lookback

level (default 52 weeks) that closes back through it the same week.

• Failed breakout: a weekly CLOSING breakout past the prior

extreme-lookback level, rejected (closed back through) within <=3

subsequent weeks — week_of is the FAILURE week, never the breakout

week.

• Continuation veto: a new CLOSING extreme in the crowd's direction,

strictly more recent than the newest triggered signal above, vetoes

confirmation regardless of what triggered.

• Swing levels: the nearest fractal swing high/low (5-week pivot,

with a documented fallback) supplies stop_reference — the nearest

swing high when fading a crowded LONG, the nearest swing low when

fading a crowded SHORT.

Every comparison is a STRICT inequality; window truncation is

per-evaluated-week, not per-run. Full definitions, the direction-mirror

table, worked examples, and the confidence-HIGH rule are in

references/contrarian-confirmation-checklist.md — read it before

producing a chart-mode verdict, so chart and script judge identically.

Output Contract

symbol: BT
direction: CROWDED_LONG
mode: data # "chart" for a Claude chart-image read
verdict: CONFIRMED | NOT_CONFIRMED | INSUFFICIENT_DATA
confidence: HIGH | MEDIUM | LOW # LOW reserved, never emitted in v1
verdict_reason: key_reversal | failed_extreme | failed_breakout |
  continuation_intact | no_reversal_evidence |
  insufficient_weekly_bars | no_price_source | ...
checks:
  weekly_key_reversal:
    { triggered, week_of, swing_window_weeks_used,
      extreme_window_weeks_used, is_full_window_extreme, detail }
  failed_extreme: { triggered, attempted_level, week_of, window_weeks_used, detail }
  failed_breakout: { triggered, breakout_level, week_of, window_weeks_used, detail }
  continuation: { new_closing_extreme_with_crowd, week_of, window_weeks_used }
swing_levels:
  nearest_swing_high: { price, week_of, fallback }
  nearest_swing_low: { price, week_of, fallback }
  stop_reference: 0.0
weekly_bars_used: 52
last_completed_week: 2026-07-06
handoff: # consumed by contrarian-setup-gate (#241)
  price_action: { verdict, confidence, stop_reference, report_path }
run_context:
  {
    price_symbol,
    price_source,
    proxy_used,
    as_of,
    lookbacks,
    recency,
    min_weeks,
    detector_json,
    detector_age_days,
    schema_version,
  }

Invariant: checks (and swing_levels) is null whenever

verdict: INSUFFICIENT_DATA — regardless of the specific reason

(no_price_source, insufficient_weekly_bars, a detector-json refusal,

...). A downstream consumer can check verdict alone before deciding

whether checks.* is safe to read, without branching on

verdict_reason.

File naming: ta_confirmation_<SYMBOL>_<as-of>.json and

ta_confirmation_<SYMBOL>_<as-of>.md, saved to reports/.

Chart-Primary, Script-Fallback

Chart images remain the PRIMARY input, consistent with this skill's

identity. Run the script instead of (or alongside) a chart read when no

chart is supplied, or when an auditable, deterministic result is

preferred:

python3 skills/technical-analyst/scripts/check_weekly_price_action.py \
  --symbol BT --direction CROWDED_LONG --as-of 2026-07-15 \
  --output-dir reports/

Or resolve direction from a cot-contrarian-detector report directly:

python3 skills/technical-analyst/scripts/check_weekly_price_action.py \
  --symbol BT --detector-json reports/cot_crowding_2026-07-12.json \
  --as-of 2026-07-15 --output-dir reports/

The script fetches weekly-resampled OHLC via a documented futures-to-ETF

fallback chain (see the module docstring in

scripts/check_weekly_price_action.py), truncates daily bars to --as-of

BEFORE resampling (no lookahead), and fails closed to

INSUFFICIENT_DATA — never a crash — on an unreadable (missing file),

syntactically invalid, stale, or structurally malformed --detector-json,

too little price history (--min-weeks, default 30), or no usable price

source.

Conservative Disagreement Rule

If both chart mode and script mode produce a result for the same

symbol/direction and their verdicts DISAGREE, the final verdict is

NOT_CONFIRMED (verdict_reason: mode_disagreement), with both

sub-results attached for review — never silently prefer one mode. If one

mode is INSUFFICIENT_DATA and the other is a clean verdict, the clean

verdict stands.

Guardrails

• Verdict-only — never a trade recommendation on its own. This

confirms step 3 of 5 (Shapiro's process). Entry and exit planning are

still manual and still required; position sizing belongs to

position-sizer / futures-position-sizer, not this mode.

• INSUFFICIENT_DATA never advances the pipeline — fail-closed on

every degraded input, always exits 0 with a report written.

• Weekly timeframe only.
• The existing chart-analysis workflow above is unchanged — this mode

only activates on an explicit contrarian-confirmation request.

• A single-signal MEDIUM verdict is deliberately weak evidence — see

the Confidence section of references/contrarian-confirmation-checklist.md.

Resources

This skill includes the following bundled resources:

references/technical_analysis_framework.md

Comprehensive methodology for technical analysis including:

• Trend analysis criteria and classification
• Support and resistance identification techniques
• Moving average interpretation guidelines
• Volume analysis principles
• Chart pattern recognition
• Scenario development and probability assignment framework
• Objectivity and discipline reminders

Usage: Read this file before conducting analysis to ensure systematic, objective approach.

assets/analysis_template.md

Structured template for technical analysis reports with all required sections.

Usage: Use this template structure for every analysis report. Copy the format and populate with specific findings for each chart.

references/contrarian-confirmation-checklist.md

Full methodology for Contrarian Confirmation Mode (Shapiro Step 3): direction

convention, window/truncation rules, the 3 signal checks + continuation

veto, swing-level (fractal pivot) rules, verdict synthesis, confidence

rules, the output contract, a chart-mode walkthrough, and the conservative

disagreement rule.

Usage: Read this file before producing a Contrarian Confirmation Mode

verdict — chart mode and scripts/check_weekly_price_action.py must judge

identically, so the same strict definitions apply to both.

scripts/check_weekly_price_action.py

Data-driven fallback CLI for Contrarian Confirmation Mode. Fetches

weekly-resampled OHLC (documented futures-to-ETF fallback chain,

--as-of information cutoff applied before resampling), runs the 3

signal checks + continuation veto + swing-level detection, and writes

ta_confirmation_<SYMBOL>_<as-of>.json/.md to reports/.

Usage: Run when no chart image is supplied, or when an auditable,

deterministic result is wanted. See the Contrarian Confirmation Mode

section above for invocation examples.