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ml4t-rl-execution

Reinforcement learning for trade execution and hedging. Use when optimizing execution algorithms or dynamic hedging policies.

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Prix non confirmé★ 20 Stars GitHubRegistre mis à jour · 28 sept. 2026agent-skill

Vue d’ensemble

Reinforcement learning for trade execution and hedging. Use when optimizing execution algorithms or dynamic hedging policies.

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RL for Trade Execution

Fixed execution schedules (TWAP, VWAP) ignore real-time market conditions. An RL agent adapts its execution rate based on order book state, reducing implementation shortfall.

The Problem

Executing a large order at a fixed rate creates predictable market impact. A 100K-share TWAP sell ignores favorable liquidity bursts and pushes through thin books. The result: 20-50 bps of avoidable shortfall on institutional orders, compounding across thousands of trades per year.

The Pattern

Model execution as a finite-horizon MDP. State: remaining shares, time left, volume, spread. Action: execution rate. Reward: negative implementation shortfall.

WRONG

# Static TWAP - ignores market conditions entirely
def twap_execute(total_shares: int, n_slices: int) -> list[int]:
    base = total_shares // n_slices
    remainder = total_shares % n_slices
    return [base + (1 if i < remainder else 0) for i in range(n_slices)]

schedule = twap_execute(100_000, 20)  # Same size every slice, blind to liquidity

CORRECT

import gymnasium as gym
import numpy as np
from gymnasium import spaces

class ExecutionEnv(gym.Env):
    """Agent decides what fraction of remaining shares to execute each step."""
    def __init__(self, total_shares=100_000, n_steps=20):
        super().__init__()
        self.total_shares, self.n_steps = total_shares, n_steps
        self.observation_space = spaces.Box(0, 1, shape=(4,), dtype=np.float32)
        self.action_space = spaces.Box(0, 1, shape=(1,), dtype=np.float32)

    def reset(self, seed=None, options=None):
        super().reset(seed=seed)
        self.remaining, self.step_idx = self.total_shares, 0
        self.arrival_price = 100.0
        return self._obs(), {}

    def step(self, action):
        shares = int(np.clip(action[0], 0, 1) * self.remaining)
        impact = 0.0001 * (shares / 5000)  # Linear market impact
        exec_price = self.arrival_price * (1 + impact)
        shortfall = (exec_price - self.arrival_price) / self.arrival_price
        reward = -abs(shortfall) * shares / self.total_shares
        self.remaining -= shares
        self.step_idx += 1
        done = self.step_idx >= self.n_steps or self.remaining <= 0
        if done and self.remaining > 0:
            reward -= 0.01  # Non-completion penalty
        return self._obs(), reward, done, False, {}

    def _obs(self):
        return np.array([
            self.remaining / self.total_shares, self.step_idx / self.n_steps,
            np.random.uniform(0.01, 0.05),  # spread
            np.random.uniform(0.3, 1.0),    # volume ratio
        ], dtype=np.float32)

Guardrails

Non-completion penalty is mandatory - without it the agent learns zero-trade is optimal
Normalize all state features - raw share counts and prices break learning
Validate against TWAP baseline - if RL underperforms TWAP, the environment is misconfigured
Use square-root impact for large orders - linear impact underestimates cost at scale
Episode = one parent order - do not mix multiple orders into one episode

Production Implementation

ml4t-backtest provides execution simulation with realistic market impact:

from ml4t.backtest import BacktestConfig, CommissionType, Engine
from ml4t.backtest.config import SlippageType
from ml4t.backtest.execution.impact import SquareRootImpact
from ml4t.backtest.execution.limits import VolumeParticipationLimit

config = BacktestConfig(
    commission_type=CommissionType.PER_SHARE,
    commission_per_share=0.005,
    slippage_type=SlippageType.VOLUME_BASED,
    slippage_rate=0.001,
)
env_engine = Engine(
    feed,
    strategy,
    config,
    market_impact_model=SquareRootImpact(volatility=0.02),
    execution_limits=VolumeParticipationLimit(max_participation=0.05),
)

Checklist

Environment has both time pressure and execution cost in the reward
State is normalized (fractions, ratios) not raw values
Non-completion is penalized (agent must finish the order)
Trained agent beats TWAP baseline on test episodes
Action space bounded (cannot execute more than remaining shares)

Voir la source ↗

Métadonnées du fichier

name: ml4t-rl-execution
description: "Reinforcement learning for trade execution and hedging. Use when optimizing execution algorithms or dynamic hedging policies."
when_to_use: "Use when building adaptive execution strategies that minimize market impact beyond static TWAP/VWAP schedules"
dependencies: [run-backtest, cost-model]
metadata:
  book_chapters: "21"
  library: "ml4t-backtest"
paths: ["**/*backtest*.py", "**/*strategy*.py", "**/*engine*.py", "**/*execution*.py", "**/*rl*.py", "**/*impact*.py"]

Voir le texte original

---
name: ml4t-rl-execution
description: "Reinforcement learning for trade execution and hedging. Use when optimizing execution algorithms or dynamic hedging policies."
when_to_use: "Use when building adaptive execution strategies that minimize market impact beyond static TWAP/VWAP schedules"
dependencies: [run-backtest, cost-model]
metadata:
  book_chapters: "21"
  library: "ml4t-backtest"
paths: ["**/*backtest*.py", "**/*strategy*.py", "**/*engine*.py", "**/*execution*.py", "**/*rl*.py", "**/*impact*.py"]
---
# RL for Trade Execution

Fixed execution schedules (TWAP, VWAP) ignore real-time market conditions. An RL agent adapts its execution rate based on order book state, reducing implementation shortfall.

## The Problem

Executing a large order at a fixed rate creates predictable market impact. A 100K-share TWAP sell ignores favorable liquidity bursts and pushes through thin books. The result: 20-50 bps of avoidable shortfall on institutional orders, compounding across thousands of trades per year.

## The Pattern

Model execution as a finite-horizon MDP. State: remaining shares, time left, volume, spread. Action: execution rate. Reward: negative implementation shortfall.

### WRONG

```python
# Static TWAP - ignores market conditions entirely
def twap_execute(total_shares: int, n_slices: int) -> list[int]:
    base = total_shares // n_slices
    remainder = total_shares % n_slices
    return [base + (1 if i < remainder else 0) for i in range(n_slices)]

schedule = twap_execute(100_000, 20)  # Same size every slice, blind to liquidity
```

### CORRECT

```python
import gymnasium as gym
import numpy as np
from gymnasium import spaces

class ExecutionEnv(gym.Env):
    """Agent decides what fraction of remaining shares to execute each step."""
    def __init__(self, total_shares=100_000, n_steps=20):
        super().__init__()
        self.total_shares, self.n_steps = total_shares, n_steps
        self.observation_space = spaces.Box(0, 1, shape=(4,), dtype=np.float32)
        self.action_space = spaces.Box(0, 1, shape=(1,), dtype=np.float32)

    def reset(self, seed=None, options=None):
        super().reset(seed=seed)
        self.remaining, self.step_idx = self.total_shares, 0
        self.arrival_price = 100.0
        return self._obs(), {}

    def step(self, action):
        shares = int(np.clip(action[0], 0, 1) * self.remaining)
        impact = 0.0001 * (shares / 5000)  # Linear market impact
        exec_price = self.arrival_price * (1 + impact)
        shortfall = (exec_price - self.arrival_price) / self.arrival_price
        reward = -abs(shortfall) * shares / self.total_shares
        self.remaining -= shares
        self.step_idx += 1
        done = self.step_idx >= self.n_steps or self.remaining <= 0
        if done and self.remaining > 0:
            reward -= 0.01  # Non-completion penalty
        return self._obs(), reward, done, False, {}

    def _obs(self):
        return np.array([
            self.remaining / self.total_shares, self.step_idx / self.n_steps,
            np.random.uniform(0.01, 0.05),  # spread
            np.random.uniform(0.3, 1.0),    # volume ratio
        ], dtype=np.float32)
```

## Guardrails

- **Non-completion penalty is mandatory** - without it the agent learns zero-trade is optimal
- **Normalize all state features** - raw share counts and prices break learning
- **Validate against TWAP baseline** - if RL underperforms TWAP, the environment is misconfigured
- **Use square-root impact for large orders** - linear impact underestimates cost at scale
- **Episode = one parent order** - do not mix multiple orders into one episode

## Production Implementation

`ml4t-backtest` provides execution simulation with realistic market impact:

```python
from ml4t.backtest import BacktestConfig, CommissionType, Engine
from ml4t.backtest.config import SlippageType
from ml4t.backtest.execution.impact import SquareRootImpact
from ml4t.backtest.execution.limits import VolumeParticipationLimit

config = BacktestConfig(
    commission_type=CommissionType.PER_SHARE,
    commission_per_share=0.005,
    slippage_type=SlippageType.VOLUME_BASED,
    slippage_rate=0.001,
)
env_engine = Engine(
    feed,
    strategy,
    config,
    market_impact_model=SquareRootImpact(volatility=0.02),
    execution_limits=VolumeParticipationLimit(max_participation=0.05),
)
```

## Checklist

- [ ] Environment has both time pressure and execution cost in the reward
- [ ] State is normalized (fractions, ratios) not raw values
- [ ] Non-completion is penalized (agent must finish the order)
- [ ] Trained agent beats TWAP baseline on test episodes
- [ ] Action space bounded (cannot execute more than remaining shares)

Examiner la source

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Licence: Apache-2.0
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Réviser avant installation: Éviter l’installation automatique

Licence: Apache-2.0

Financial research output is not financial advice; require human review before any live investment decision
Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
Low GitHub adoption signal
L’approbation de revue IA est absente
Financial research output is not financial advice; require human review before any live investment decision.
This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
Quality score needs review
GitHub adoption: 20 GitHub stars
Stars/forks activity: 20 stars, 11 forks; issue activity unavailable in current metadata
Review status: AI review approval is missing

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Commencer par une petite tâche

1Lisez la source et confirmez entrées, résultats, dépendances et permissions.
2Demandez un plan à l’agent. Approuvez la configuration et les coûts avant un test isolé.
3Vérifiez résultats et fichiers modifiés. Signalez uniquement ce qui a été exécuté et conservez la révision source.

Vérifiez les dépendances, clés API et frais externes dans la source. Un dépôt public ne rend pas tous les services gratuits.

Source et conseils d’utilisation

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Dépôt source: ml4t/skills
Licence: Apache-2.0
Version: Unknown
Dernier push GitHub: 27 sept. 2026
Registre mis à jour: 28 sept. 2026
Chemin des instructions: backtest/rl-execution/SKILL.md @ f0ea01919e0c

Version déclarée dans le registre ; vérifiez les versions de la source.

Qualité

54/100

Revue nécessaire

Confiance

63/100

Sandbox uniquement

Audit

74/100

Risqué

Ouvrir l’audit complet Voir le rapport d’évaluation

Financial research output is not financial advice; require human review before any live investment decision
Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
Low GitHub adoption signal
L’approbation de revue IA est absente
Financial research output is not financial advice; require human review before any live investment decision.
This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
Quality score needs review
GitHub adoption: 20 GitHub stars
Stars/forks activity: 20 stars, 11 forks; issue activity unavailable in current metadata
Review status: AI review approval is missing

Verified installs: —
Résultats: —

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    "method": "POST",
    "requires_resolve_event_id": true,
    "event_id_source": "Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.",
    "expected_outcomes": [
      "success",
      "failed",
      "not_relevant",
      "blocked_by_risk",
      "setup_required"
    ],
    "payload_template": {
      "event_id": "<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>",
      "skill_slug": "ml4t-ml4t-rl-execution",
      "task": "Use ml4t-rl-execution in an agent workflow",
      "agent": "codex",
      "outcome": "success",
      "install_used": true,
      "risk_blocked": false,
      "setup_required": false,
      "task_success": true,
      "output_quality": 4,
      "error_type": null,
      "human_review_required": false,
      "workspace": "sandbox",
      "time_to_useful_ms": 120000,
      "notes": "Report the smallest successful task, setup friction, files touched, and risk notes."
    }
  },
  "endpoints": {
    "web": "https://www.openagentskill.com/skills/ml4t-ml4t-rl-execution",
    "api": "https://www.openagentskill.com/api/agent/skills/ml4t-ml4t-rl-execution",
    "audit": "https://www.openagentskill.com/skills/ml4t-ml4t-rl-execution/audit",
    "eval": "https://www.openagentskill.com/api/agent/evals?slug=ml4t-ml4t-rl-execution&task=Use%20ml4t-rl-execution%20in%20an%20agent%20workflow&max_risk=medium",
    "resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20ml4t-rl-execution%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
    "receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20ml4t-rl-execution%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
    "install": "https://www.openagentskill.com/api/skills/ml4t-ml4t-rl-execution/install",
    "manifest": "https://www.openagentskill.com/api/registry/manifest/ml4t-ml4t-rl-execution"
  }
}

Pour le créateur

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Cette fiche a été indexée à partir de sources publiques et n’est pas marquée officielle tant qu’une revendication de mainteneur n’est pas approuvée.

Créateur: ml4t
Source: ml4t/skills
Indexé par: Index communautaire OpenAgentSkill

L’attribution renvoie au dépôt public ou au profil du créateur. Les créateurs peuvent revendiquer la fiche pour mettre à jour les signaux de propriété.

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