claude

ultracost

Per-stage model routing + pre-flight cost gate for Claude Code ultracode dynamic workflows. Pins an explicit model + effort on every agent() subagent stage, estimates cost before launch, and ships a static guard + PreToolUse gate that flag stages which would silently inherit the session's Opus model. Zero dependencies, no telemetry, MIT.

3,741 on GitHubby Daniel Kremenv0.3.7MITupdated 2 days agodevelopment
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Plugin ultracost from marketplace buildwithclaude in davepoon/buildwithclaude. Commands read from the repo's manifest — yesterday.

This plugin runs code on your machine — its hooks fire automatically on events like tool use. The exact commands are listed below; read them before installing.

What it installs

Skills (1)

  • ultracost

    Quality-first per-stage model routing AND a pre-flight cost gate for Claude Code dynamic workflows. Use when authoring or running ultracode / dynamic-workflow scripts, spawning subagents, or writing agent() stages — pin the right model and effort on every stage, then estimate cost and confirm with t

Slash commands (12)

  • /ultracost:audit

    Audit pin coverage across your real workflow scripts, identify the worst offenders, and offer to check or fix a specific one.

  • /ultracost:calibrate

    Tune the estimator from your real token usage (outlier-filtered prior) so future estimates match your reality, and report what changed.

  • /ultracost:check

    Guard a dynamic-workflow script and fix it: flag agent() stages that would inherit the session model or mismatch the task, propose the right per-stage pins, and offer to apply them.

  • /ultracost:diff

    Diff the estimated cost of two workflow versions and judge whether the change is worth it; add --ci for a PR-comment table.

  • /ultracost:estimate

    Estimate a workflow before launch and help cut its cost: agent count, model mix, tiered vs all-opus, then surface the costly stages and offer concrete downgrades.

  • /ultracost:explain

    Explain a workflow stage by stage — pinned model, effort, the tier the prompt reads like, est cost, and which guard checks fire — and flag any pin that disagrees with the work.

  • /ultracost:hud

    Set up, preview, or disable the ultracost HUD statusline — a live multi-line panel showing session cost, cumulative savings vs all-opus, the subagents running right now (model + tier + elapsed), and an animated pixel-art ultracost logo.

  • /ultracost:ledger

    Show cumulative savings vs an all-opus baseline across recorded runs, with the per-run trend and today's spend.

  • /ultracost:reconcile

    Reconcile a real workflow run — estimate vs ACTUAL per stage from local transcripts — and judge whether the routing held up.

  • /ultracost:simulate

    Compare a workflow's cost under all-opus, the tiered pins as written, and aggressive all-sonnet — then recommend the right point on the quality/cost curve.

  • /ultracost:status

    Report how ultracost is delivered (plugin / cli / both / none) and the active policy, and surface any permission-mode caveat that weakens the cost gate.

  • /ultracost:usage

    Report real token cost from local transcripts (main loop vs subagents vs workflow stages) and point out where the spend is concentrated. Offline.

Hooks (4)

  • SessionStart

    node "${CLAUDE_PLUGIN_ROOT}/templates/hooks/reinject.mjs"

  • SessionStart

    node "${CLAUDE_PLUGIN_ROOT}/templates/hooks/hud-setup.mjs"

  • PreToolUse

    node "${CLAUDE_PLUGIN_ROOT}/templates/hooks/workflow-gate.mjs"

  • Stop

    node "${CLAUDE_PLUGIN_ROOT}/templates/hooks/loop-autorun.mjs"

View source on GitHub buildwithclaude.com

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