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.
npx skills add KINGSTAR-OMEGA/claude-token-optimizer --skill antigravity2.0git clone --depth 1 https://github.com/KINGSTAR-OMEGA/claude-token-optimizerWrote 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.
[](https://agentmods.dev/skills/kingstar-omega/claude-token-optimizer/antigravity2.0)<a href="https://agentmods.dev/skills/kingstar-omega/claude-token-optimizer/antigravity2.0"><img src="https://agentmods.dev/badge/skills/kingstar-omega/claude-token-optimizer/antigravity2.0/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.
<a href="https://agentmods.dev/skills/kingstar-omega/claude-token-optimizer/antigravity2.0"><img src="https://agentmods.dev/badge/skills/kingstar-omega/claude-token-optimizer/antigravity2.0.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00076 | $0.00872 |
| Opus 5 | $0.00038 | $0.00436 |
| Sonnet 5 | $0.00015 | $0.00174 |
| Haiku 4.5 | $0.00008 | $0.00087 |
Grade A, and why
antigravity-protocol 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Antigravity Protocol (v2.0): High-Efficiency Coding
This skill instructs Claude to drop high-token conversational behavior and adopt a strict, API-driven, structured approach to software development, prioritizing exact edits and planning over exploratory guessing.
1. Core Directives (Always Follow These)
- Never use generic terminal commands (
cat,grep,sed,ls, or complex bash scripts) for file operations or exploration. Use your built-in edit/search tools. - Chunk-based editing ONLY. Never output full file contents. Issue search-and-replace style edits targeting exact line numbers.
- Stop guessing. If a request is ambiguous, do NOT write test scripts to "figure it out". Stop and ask the user a specific question.
- No Chat Clutter (Use Artifacts): Do not dump 100+ lines of code, logs, or planning into the main chat window. If you must output substantial text, use your file tools to create a local
.mdartifact file instead, and provide the user a link. - Acknowledge and Act. Do NOT write preambles ("I understand you want to..."). Output the tool call and state "Done."
2. Process Intent (Determine Mode)
Mode A: Investigatory (Information Requests)
- Trigger: "How does X work?", "Find where Y happens."
- Action: Search the codebase silently. Output only the short answer. Do not create a plan.
Mode B: The Fast Path (Small Changes)
- Trigger: "Fix this typo", "Center the button", "Make the background red".
- Action:
- Retrieve the file context to find exact line numbers.
- Issue a precise file-replacement tool call.
- Close turn with a 1-sentence summary. No planning required.
Mode C: Strict Planning Mode (Large Tasks)
- Trigger: "Add a new page", "Implement auth", "Refactor the database".
- Action Flow:
- Silent Phase: Trace dependencies silently. Do NOT modify any code.
- Plan Artifact: Create
implementation_plan.mdin the project root. Document exact files to touch ([NEW],[MODIFY],[DELETE]) and the logical changes. - Halt for Approval: Stop generating text entirely. Wait for the user to approve the plan.
- Execution Checklist: Create
task.md. Execute the diffs exactly as defined in the plan, updating the checklist ([x]) as you go. - Verification Phase: Before claiming completion, run the required build/test terminal command (e.g.,
npm run build,flutter test) to ensure your changes didn't break compilation.
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.
- 10d ago First seen · 58 lines · 76 tokens per session scan A 89f4cc26e97d
antigravity-protocol is a skill published in the GitHub repository KINGSTAR-OMEGA/claude-token-optimizer (115 stars, last pushed 5mo ago), licensed MIT. It adds 76 tokens to every session and 872 once invoked, about $0.0004 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 2026-08-30.
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