estimate

estimate is a skill for Claude Code from Donchitos/Claude-Code-Game-Studios. It costs 20 tokens per session (1,379 once invoked), scanned A, original, MIT.

An effort estimate based on the task, affected code, dependencies, previous project progress, and risks. It reports how complex the work appears and how confident the estimate is.

In plain words
What is it for?
Use it to estimate game-development tasks, inspect which files and systems they may affect, and assess testing, integration, and migration risks.
Why use it?
It makes hidden work and uncertainty visible before a task is scheduled, helping teams plan more realistically.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md.

Good fit Use it to estimate game-development tasks, inspect which files and systems they may affect, and assess testing, integration, and migration risks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/donchitos/claude-code-game-studios/estimate
About the project

Claude Code Game Studios is a setup that organizes Claude Code into a coordinated game-development team of specialized AI agents. It supports game projects across design, programming, art, audio, narrative, quality assurance, and production, with skills and workflows for coordinating that work.

Donchitos/Claude-Code-Game-Studios · 26,893 stars · on GitHub

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.

Any agent
npx skills add Donchitos/Claude-Code-Game-Studios --skill estimate
Clone the repo
git clone --depth 1 https://github.com/Donchitos/Claude-Code-Game-Studios

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for estimate

README.md
[![agentmods](https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/estimate/github.svg)](https://agentmods.dev/skills/donchitos/claude-code-game-studios/estimate)
Your own site
<a href="https://agentmods.dev/skills/donchitos/claude-code-game-studios/estimate"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/estimate/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for estimate

Your own site · 80×15
<a href="https://agentmods.dev/skills/donchitos/claude-code-game-studios/estimate"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/estimate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,379 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 15 May 2026
  • Snyk pass 15 May 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 7
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 5.1 $0.00020 $0.01379
Opus 5.5 $0.00008 $0.00552
Sonnet 5.5 $0.00004 $0.00276
Haiku 4.5 $0.00002 $0.00138

Measured today against content hash 61d821627b3d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

estimate 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 today.

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.

Origin

Copies of this mod

3 near-identical copies found in the catalogue:

  • estimate — 97% identical, 33 lines differ
  • estimate — 97% identical, 33 lines differ
  • estimate — 97% identical, 31 lines differ
.claude/skills/estimate/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Estimate

Phase 1: Understand the Task

Read the task description from the argument. If the description is too vague to estimate meaningfully, ask for clarification before proceeding.

Read CLAUDE.md for project context: tech stack, coding standards, architectural patterns, and any estimation guidelines.

Read relevant design documents from design/gdd/ if the task relates to a documented feature or system. Read them by section: find the headings you need with the Grep tool (pattern ^#, content mode) and Read those ranges with offset and limit.


Phase 2: Scan Affected Code

Identify files and modules that would need to change:

  • Measure size and branching with Grep, per affected file — Read, Glob and Grep are this skill's only tools, so these counts are the measurement:
    • Size: Grep pattern="[^[:space:]]" path="[file]" output_mode="count" — non-blank lines.
    • Branching: Grep pattern="(^|[^A-Za-z0-9_])(if|elif|for|foreach|while|match|switch|case|catch)([^A-Za-z0-9_]|$)|&&|[|][|]" path="[file]" output_mode="count" — lines holding a branch or a boolean operator. The count approximates cyclomatic complexity (comments and strings count too); report it as that, never as a measured complexity.
    • Dependencies: what each file pulls in — preload/load( (GDScript), using (C#), #include (C++) — and which other files reference it.
    • Name any file Grep could not count (missing, binary, unreadable) under Notes and Assumptions rather than leaving it out of the totals.
  • Identify integration points with other systems
  • Check for existing test coverage in the affected areas
  • Read past sprint data from production/sprints/ for similar completed tasks and historical velocity. If there is none, say so under Notes and Assumptions — "No sprint history found; this estimate is not calibrated to the team's velocity" — and treat that as a risk in the confidence level, not as a silent padding of the figures.

Read the full file on GitHub · 151 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. today Changed · +12 lines 61d821627b3d
  2. 11d ago Changed · +2 lines 0b054f7a62b9
  3. 20d ago Changed · +4 lines cee5d4daeaed
  4. 26d ago Changed · -8 tokens per session f2a3388d11e5
  5. 1mo ago First seen · 133 lines · 28 tokens per session scan A 7774e2d256a0

Subscribe to this mod's changes

estimate is a skill published in the GitHub repository Donchitos/Claude-Code-Game-Studios (26,893 stars, last pushed yesterday), licensed MIT. It adds 20 tokens to every session and 1,379 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

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