Token Budget Advisor (TBA)

Intercept the response flow to offer the user a choice about response depth before Claude answers.

When to Use

• User wants to control how long or detailed a response is

• User mentions tokens, budget, depth, or response length

• User says "short version", "tldr", "brief", "al 25%", "exhaustive", etc.

• Any time the user wants to choose depth/detail level upfront

Do not trigger when: user already set a level this session (maintain it silently), or the answer is trivially one line.

How It Works

Step 1 — Estimate input tokens

Use the repository's canonical context-budget heuristics to estimate the prompt's token count mentally.

Use the same calibration guidance as context-budget:

• prose: words × 1.3

• code-heavy or mixed/code blocks: chars / 4

For mixed content, use the dominant content type and keep the estimate heuristic.

Step 2 — Estimate response size by complexity

Classify the prompt, then apply the multiplier range to get the full response window:

Response window = input_tokens × mult_min to input_tokens × mult_max (but don’t exceed your model’s configured output-token limit).

Step 3 — Present depth options

Present this block before answering, using the actual estimated numbers:

Analyzing your prompt...

Input: ~[N] tokens  |  Type: [type]  |  Complexity: [level]  |  Language: [lang]

Choose your depth level:

[1] Essential   (25%)  ->  ~[tokens]   Direct answer only, no preamble

[2] Moderate    (50%)  ->  ~[tokens]   Answer + context + 1 example

[3] Detailed    (75%)  ->  ~[tokens]   Full answer with alternatives

[4] Exhaustive (100%)  ->  ~[tokens]   Everything, no limits

Which level? (1-4 or say "25% depth", "50% depth", "75% depth", "100% depth")

Precision: heuristic estimate ~85-90% accuracy (±15%).

Level token estimates (within the response window):

• 25% → min + (max - min) × 0.25

• 50% → min + (max - min) × 0.50

• 75% → min + (max - min) × 0.75

• 100% → max

Step 4 — Respond at the chosen level

Shortcuts — skip the question

If the user already signals a level, respond at that level immediately without asking:

If the user set a level earlier in the session, maintain it silently for subsequent responses unless they change it.

Precision note

This skill uses heuristic estimation — no real tokenizer. Accuracy ~85-90%, variance ±15%. Always show the disclaimer.

Examples

Triggers

• "Give me the short version first."

• "How many tokens will your answer use?"

• "Respond at 50% depth."

• "I want the exhaustive answer, not the summary."

• "Dame la version corta y luego la detallada."

Does Not Trigger

• "What is a JWT token?"

• "The checkout flow uses a payment token."

• "Is this normal?"

• "Complete the refactor."

• Follow-up questions after the user already chose a depth for the session

Source

Standalone skill from TBA — Token Budget Advisor for Claude Code.

Original project also ships a Python estimator script, but this repository keeps the skill self-contained and heuristic-only.