Borrowing it
Nothing to install: this file belongs to nirholas/XActions. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/nirholas/XActions/main/GEMINI.mdgit clone --depth 1 https://github.com/nirholas/XActionsWrote 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/instructions/nirholas/xactions/gemini-md)<a href="https://agentmods.dev/instructions/nirholas/xactions/gemini-md"><img src="https://agentmods.dev/badge/instructions/nirholas/xactions/gemini-md/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/instructions/nirholas/xactions/gemini-md"><img src="https://agentmods.dev/badge/instructions/nirholas/xactions/gemini-md.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 | $0.00403 | $0.00403 |
| Opus 5.5 | $0.00161 | $0.00161 |
| Sonnet 5.5 | $0.00081 | $0.00081 |
| Haiku 4.5 | $0.00040 | $0.00040 |
Grade A, and why
XActions GEMINI.md 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 1mo 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.
What it actually says
XActions: instructions for Gemini
Read AGENTS.md. It is the single source of truth for how to work in this repository, and it is kept current. This file adds only what is specific to Gemini; it deliberately does not restate AGENTS.md, because the last time four files described the repository they drifted apart and an agent worked a whole session from the stale one.
AGENTS.md answers, in this order: which lane to use (shell out to the xactions CLI, or
load the MCP server), the CLI lane and its output contract, the MCP lane, a table from
common request to the exact file that answers it, the skills, the directory map and the
three runtime contexts, and the mistakes that have actually cost people time here.
Gemini specifics
The CLI lane is usually the right one here: one shell call, no tool list to load.
npx xactions profile nasa --compact # no account, no browser
npx xactions tweets nasa --limit 50 --json
--compact prints one record per line as tab-separated key=value pairs; --fields
narrows that to the columns you name; --json prints the full object. --compact wins
if both are passed.
The skills are plain Markdown and readable directly from skills/. The
installer writes them into a specific host's directory, and its targets today are
claude, project, cursor, codex and windsurf:
xactions skills list # every skill and what it covers
xactions skills show follower-monitoring # read one without installing it
xactions skills install --all --target project # ./.claude/skills/ in this repo
Everything else is in AGENTS.md.
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.
- 1mo ago First seen · 37 lines · 403 tokens per session scan A 887db71c9ee8
XActions GEMINI.md is an instructions file published in the GitHub repository nirholas/XActions (596 stars, last pushed 2d ago), licensed Apache-2.0. It adds 403 tokens to every session, about $0.0016 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 2026-08-30.
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