Econ Supply Demand

What it does

When your agent uses it

• The user needs to analyze how prices are set in a market
• Predict the effect of taxes/subsidies/price controls
• Understand shifts in supply
• Demand curves — even if they say why did the price go up

Example prompts

• “why did the price go up”
• “what happens if the government sets a price cap”
• “how does a tariff affect the market”
• “/econ-supply-demand”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Define the market: What good? What geographic/time scope?
2. 2Identify the shock: What changed? Is it demand-side or supply-side?
3. 3Determine shift direction: Does the curve shift left (decrease) or right (increase)?
4. 4Find new equilibrium: Where do the new curves intersect?
5. 5State the result: What happens to price and quantity?

What it can do on your machine

Read from SKILL.md and the folder at commit 4e7f4f8. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Econ Supply Demand loads about 1.3k tokens when it runs, and up to ~5.6k if it reads all its reference files. Until then it costs about 116 tokens; SKILL.md has 434 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~116

When it runs · the whole SKILL.md, loaded when a task matches

~1.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~5.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from asgard-ai-platform/skills at commit 4e7f4f8, republished under its MIT licence (© asgard-ai-platform). 434 words, ~1,280 tokens.

name

econ-supply-demand

description

Apply supply and demand analysis to explain price determination, market equilibrium, and the effects of policy interventions. Use this skill when the user needs to analyze how prices are set in a market, predict the effect of taxes/subsidies/price controls, or understand shifts in supply or demand curves — even if they say 'why did the price go up', 'what happens if the government sets a price cap', or 'how does a tariff affect the market'.

metadata.category

WP-17 經濟學院

metadata.tags

economics, supply-demand, microeconomics

IRON LAW: Shift vs Movement Along the Curve

A change in PRICE causes movement ALONG the curve (quantity changes).
A change in OTHER FACTORS (income, costs, preferences, technology) causes
the entire curve to SHIFT.

"Demand increased" means the demand CURVE shifted right (more quantity
at every price), NOT that quantity demanded increased due to a price drop.
Confusing these is the #1 error in supply-demand analysis.

IRON LAW: Ceteris Paribus — Change One Thing at a Time

When analyzing a shift, hold everything else constant. If both supply
and demand shift simultaneously, the effect on price or quantity (or both)
becomes ambiguous. Analyze each shift separately first, then combine.

# Supply-Demand Analysis: {Market}

## Market Definition
- Good: ...
- Scope: ...

## Shock Identification
- Event: {what changed}
- Affected curve: Demand / Supply
- Direction: Shift left / right
- Mechanism: {why this shifts the curve}

## Equilibrium Impact
| | Before | After | Change |
|---|--------|-------|--------|
| Price | $X | $X | ↑/↓ |
| Quantity | X units | X units | ↑/↓ |

## Analysis
{Detailed explanation with diagram description}

© asgard-ai-platform, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in econ-supply-demand of asgard-ai-platform/skills.

• SKILL.md
• examples/sample_scenario.md
• references/elasticity.md
• references/welfare-analysis.md

Open the folder on GitHubat commit 4e7f4f8