# Flag Pennant

> Trade bull and bear flags and pennants for trend continuation. Use when riding strong trends, entering on pullbacks, or trading momentum breakouts.

- **Type:** Skill
- **Install:** `agentstack add skill-ske-labs-agent-trading-skills-flag-pennant`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [SKE-Labs](https://agentstack.voostack.com/s/ske-labs)
- **Installs:** 0
- **Category:** [Finance & Payments](https://agentstack.voostack.com/c/finance-and-payments)
- **Latest version:** 0.1.0
- **License:** Apache-2.0
- **Upstream author:** [SKE-Labs](https://github.com/SKE-Labs)
- **Source:** https://github.com/SKE-Labs/agent-trading-skills/tree/main/skills/chart-patterns/flag-pennant

## Install

```sh
agentstack add skill-ske-labs-agent-trading-skills-flag-pennant
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Flag & Pennant Patterns

Continuation patterns that form during pauses in strong trends.

## Pattern Structure

**Components:** Flagpole (strong impulsive move) → Flag/Pennant (consolidation) → Breakout (continuation).

- **Bull Flag** — Strong upward pole, downward-sloping rectangular channel, breaks upward
- **Bear Flag** — Strong downward pole, upward-sloping rectangular channel, breaks downward
- **Pennant** — Strong move (pole), symmetrical triangle consolidation, breaks in pole direction

| Criteria | Flag | Pennant |
|----------|------|---------|
| Shape | Rectangular channel (2 parallel lines) | Symmetrical triangle (2 converging lines) |
| Slope | Against trend | Neutral |
| Volume | Decreasing | Decreasing |

## Workflow

### 1. Get Swing Point Data

Identify the flagpole and consolidation boundaries:

```
get_candles_around_date(symbol=, exchange=, interval=, date=)
```

### 2. Draw Flag/Pennant Boundaries (2 parallel calls)

**For flags** (2 parallel trend lines sloping against the pole):

```
# Upper flag boundary
draw_chart_analysis(action="create", drawing={
    "type": "trend",
    "points": [
        {"time": , "price": },
        {"time": , "price": }
    ],
    "options": {"text": "Flag R"}
})

# Lower flag boundary (parallel to upper)
draw_chart_analysis(action="create", drawing={
    "type": "trend",
    "points": [
        {"time": , "price": },
        {"time": , "price": }
    ],
    "options": {"text": "Flag S"}
})
```

**For pennants:** same approach but lines converge (like a small symmetrical triangle).

### 3. Confirm and Enter

Confirm declining volume during consolidation via `get_indicators(indicator_code="mfi", symbol=, exchange=, interval=)`.

**Standard:** Enter on break of flag/pennant boundary with volume spike. Stop beyond opposite side.
**Conservative:** Wait for breakout + retest of boundary. Enter on bounce.
**Target:** Flagpole length projected from breakout point.

## Key Rules
- Pole must be strong and impulsive (3+ candles of directional momentum)
- NEVER trade a flag that retraces more than 50% of the pole — this invalidates the pattern
- NEVER enter without volume decline during formation + spike on breakout
- Quick formations are more reliable than extended consolidations
- Flag duration should be short relative to the pole

## Related Skills
- **triangle-patterns** — Pennants are small symmetrical triangles
- **channel-trading** — Flags are short-duration trending channels

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [SKE-Labs](https://github.com/SKE-Labs)
- **Source:** [SKE-Labs/agent-trading-skills](https://github.com/SKE-Labs/agent-trading-skills)
- **License:** Apache-2.0

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-ske-labs-agent-trading-skills-flag-pennant
- Seller: https://agentstack.voostack.com/s/ske-labs
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.