usage

A read-only command that reports how many tokens each specification file uses, including saved full versions and upcoming phases of the active feature.

In plain words
What is it for?
Use it to inspect one feature, all features, or a named feature, and review file sizes, estimated tokens, backups, and compaction markers.
Why use it?
It shows where your project instructions consume context-window space and what savings compacted files have already produced.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/tinesoft/spec-kit-token-budget/usage
Clone the repo
git clone --depth 1 https://github.com/tinesoft/spec-kit-token-budget
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 986 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00037 $0.00986
Opus 5 $0.00018 $0.00493
Sonnet 5 $0.00007 $0.00197
Haiku 4.5 $0.00004 $0.00099

Measured 2d ago against content hash 790f4a1c4b16, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

usage scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/usage.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/speckit.token-budget.usage

The user has invoked /speckit.token-budget.usage with arguments: $ARGUMENTS.

Your task

Inspect the active feature directory and produce a one-screen token-usage dashboard. Read-only — never modify artifacts.

Algorithm

Step 1 — Resolve scope

Default scope: the active feature (from current git branch). If $ARGUMENTS contains --all, walk every feature under specs/. If it contains --feature=<name>, target that feature.

Step 2 — Enumerate artifacts

For each artifact present, record:

  • path (relative to feature directory)
  • byte size
  • estimated token count (use estimate_tokens.sh)
  • whether a .full.md backup exists, and its token count if so
  • whether the file carries the <!-- token-budget: compacted --> marker

Standard artifact set: constitution.md, spec.md, plan.md, research.md, data-model.md, quickstart.md, tasks.md, every file in contracts/, plus any extra .md files in the feature root (treat as auxiliary).

Also check .specify/memory/constitution.md at the project root. If present, record it separately as a global artifact — it is not feature-scoped but is loaded on every /speckit.* command.

Step 3 — Project per-phase budgets

For each upcoming phase the feature has not yet completed, sum the artifacts it would normally consume (from scope.phase_inputs in token-budget-config.yml). Show two numbers per phase: current size, and size if every artifact were compacted (estimated as 60% for medium, 45% for aggressive — these are heuristics, not guarantees, and should be labeled as such).

Step 4 — Render

Output exactly this layout. Right-align numbers. Use thousands separators. Pad with spaces, not tabs.

Token Budget — feature: <feature-name>
Path: specs/<feature-name>/

Global memory (loaded on every /speckit.* command)
─────────────────────────────────────────────────────────────────
.specify/memory/constitution.md    1,450          —    baseline
─────────────────────────────────────────────────────────────────

Artifact                tokens     vs full       status
─────────────────────────────────────────────────────────────────
constitution.md          1,240          —        baseline
spec.md                  2,310     -52.1%        compacted (medium)
plan.md                  3,580     -41.7%        compacted (medium)
research.md              1,180     -63.1%        compacted (medium)
data-model.md            1,840          —        baseline
contracts/orders.yaml      910          —        schema (not eligible)
contracts/users.yaml       820          —        schema (not eligible)
quickstart.md              640          —        baseline
tasks.md                 4,210          —        baseline
─────────────────────────────────────────────────────────────────
total                   16,730     -27.4% vs uncompacted

Projected phase budgets
                       current    if aggressive compact
plan       (done)            —                       —
tasks      (done)            —                       —
implement                12,560                   ~7,540
analyze                  10,100                   ~6,060

Backups present: spec.full.md, plan.full.md, research.full.md
Concise mode: <on|off>  (memory file: <path>)

Read the full file on GitHub · 113 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 113 lines · 37 tokens per session scan A 790f4a1c4b16

Subscribe to this mod's changes

usage is a command published in the GitHub repository tinesoft/spec-kit-token-budget (7 stars, last pushed 1mo ago), licensed MIT. It adds 37 tokens to every session and 986 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.