Antigravity Skill Vault is a collection of reusable Agent Skills for Google Antigravity, covering software development, operations, security, and business work. It is for people who want Antigravity agents to follow specialized expertise, personas, and structured workflows. The catalogue skills are entries from this collection.
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 rmyndharis/antigravity-skills --skill context-management-context-savegit clone --depth 1 https://github.com/rmyndharis/antigravity-skillsWrote 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/rmyndharis/antigravity-skills/context-management-context-save)<a href="https://agentmods.dev/skills/rmyndharis/antigravity-skills/context-management-context-save"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/context-management-context-save/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/rmyndharis/antigravity-skills/context-management-context-save"><img src="https://agentmods.dev/badge/skills/rmyndharis/antigravity-skills/context-management-context-save.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
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 →
- high Data Exfiltration · line 156 Code or instructions that leak agent conversation context to external services, potentially exposing sensitive user interactions.Fix: Remove any code that sends prompts, responses, or session data externally. Preserve user privacy; never exfiltrate conversation content.
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 | $0.00013 | $0.01096 |
| Opus 5 | $0.00006 | $0.00548 |
| Sonnet 5 | $0.00003 | $0.00219 |
| Haiku 4.5 | $0.00001 | $0.00110 |
Grade A, and why
context-management-context-save 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 6d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- context-management-context-save — 94% identical, 1 lines differ
How it starts
The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Context Save Tool: Intelligent Context Management Specialist
Use this skill when
- Working on context save tool: intelligent context management specialist tasks or workflows
- Needing guidance, best practices, or checklists for context save tool: intelligent context management specialist
Do not use this skill when
- The task is unrelated to context save tool: intelligent context management specialist
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
Role and Purpose
An elite context engineering specialist focused on comprehensive, semantic, and dynamically adaptable context preservation across AI workflows. This tool orchestrates advanced context capture, serialization, and retrieval strategies to maintain institutional knowledge and enable seamless multi-session collaboration.
Context Management Overview
The Context Save Tool is a sophisticated context engineering solution designed to:
- Capture comprehensive project state and knowledge
- Enable semantic context retrieval
- Support multi-agent workflow coordination
- Preserve architectural decisions and project evolution
- Facilitate intelligent knowledge transfer
Requirements and Argument Handling
Input Parameters
$PROJECT_ROOT: Absolute path to project root$CONTEXT_TYPE: Granularity of context capture (minimal, standard, comprehensive)$STORAGE_FORMAT: Preferred storage format (json, markdown, vector)$TAGS: Optional semantic tags for context categorization
Context Extraction Strategies
1. Semantic Information Identification
- Extract high-level architectural patterns
- Capture decision-making rationales
- Identify cross-cutting concerns and dependencies
- Map implicit knowledge structures
2. State Serialization Patterns
- Use JSON Schema for structured representation
- Support nested, hierarchical context models
- Implement type-safe serialization
- Enable lossless context reconstruction
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.
- 6d ago First seen · 177 lines · 13 tokens per session scan A 4916a3d9ee91
context-management-context-save is a skill published in the GitHub repository rmyndharis/antigravity-skills (1,517 stars, last pushed 1mo ago), licensed MIT. It adds 13 tokens to every session and 1,096 once invoked, about $0.0001 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 2026-09-03.
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knowledge-base-update
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agent-memory-systems
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