Canonical definition
Do you sell stocks that have gained value but hold onto losing ones, hoping they’ll recover? That’s Disposition Effect – the tendency to cash in on winners too early and hold onto losers for too long.

Free cognitive-bias Agent Skill
Use Disposition Effect as a focused cognitive-bias lens. Explain the pattern, check whether it plausibly fits the situation, surface an alternative non-bias explanation, and return a practical counter-check without diagnosing people or claiming causation.
What the agent should do
Do you sell stocks that have gained value but hold onto losing ones, hoping they’ll recover? That’s Disposition Effect – the tendency to cash in on winners too early and hold onto losers for too long.
Install
Hermes Agent
mkdir -p ~/.hermes/skills/bias-prospect-theory-disposition-effect && curl -fsSL https://cognitive-biases.github.io/agent-skills/bias-prospect-theory-disposition-effect/SKILL.md -o ~/.hermes/skills/bias-prospect-theory-disposition-effect/SKILL.mdOpenClaw
mkdir -p ~/.openclaw/workspace/skills/bias-prospect-theory-disposition-effect && curl -fsSL https://cognitive-biases.github.io/agent-skills/bias-prospect-theory-disposition-effect/SKILL.md -o ~/.openclaw/workspace/skills/bias-prospect-theory-disposition-effect/SKILL.mdOther Agent Skills-compatible tools
Download SKILL.md and put it in the skill directory or import surface supported by your agent.
Boundary
The skill must preserve uncertainty, surface a non-bias explanation and avoid turning a cognitive-bias label into a claim about a person's motives, intelligence or mental health.