EGC: Skill for Codex

.agents/skills/x-api/SKILL.md

x-api is a skill for Codex from Fmarzochi/EGC. It costs 48 tokens per session (1,601 once invoked), scanned A, a copy of x-api, Apache-2.0.

A guide for connecting software to X, formerly known as Twitter, through its programming interface.

In plain words
What is it for?
Use it to publish posts and threads, read timelines and mentions, search posts, build bots, or track engagement.
Why use it?
It explains the authentication methods and platform limits involved in reading or changing X data.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is Fmarzochi/EGC's own configuration. It tells Codex how to work on EGC itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything EGC configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Fmarzochi/EGC. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Fmarzochi/EGC/main/.agents/skills/x-api/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Fmarzochi/EGC

Made for: Codex.

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 x-api

README.md
[![agentmods](https://agentmods.dev/badge/skills/fmarzochi/egc/x-api/github.svg)](https://agentmods.dev/skills/fmarzochi/egc/x-api)
Your own site
<a href="https://agentmods.dev/skills/fmarzochi/egc/x-api"><img src="https://agentmods.dev/badge/skills/fmarzochi/egc/x-api/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 x-api

Your own site · 80×15
<a href="https://agentmods.dev/skills/fmarzochi/egc/x-api"><img src="https://agentmods.dev/badge/skills/fmarzochi/egc/x-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,601 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 $0.00048 $0.01601
Opus 5.5 $0.00019 $0.00640
Sonnet 5.5 $0.00010 $0.00320
Haiku 4.5 $0.00005 $0.00160

Measured 21d ago against content hash d5b1dffd68c8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

x-api scanned grade A with 1 finding 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 21d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

resp = requests.get(
Origin

This is a copy

100% identical to x-api — 23 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/x-api/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

X API

Programmatic interaction with X (Twitter) for posting, reading, searching, and analytics.

When to Activate

  • User wants to post tweets or threads programmatically
  • Reading timeline, mentions, or user data from X
  • Searching X for content, trends, or conversations
  • Building X integrations or bots
  • Analytics and engagement tracking
  • User says "post to X", "tweet", "X API", or "Twitter API"

Authentication

OAuth 2.0 Bearer Token (App-Only)

Best for: read-heavy operations, search, public data.

# Environment setup
export X_BEARER_TOKEN="your-bearer-token"
import os
import requests

bearer = os.environ["X_BEARER_TOKEN"]
headers = {"Authorization": f"Bearer {bearer}"}

# Search recent tweets
resp = requests.get(
    "https://api.x.com/2/tweets/search/recent",
    headers=headers,
    params={"query": "egc code", "max_results": 10}
)
tweets = resp.json()

OAuth 1.0a (User Context)

Required for: posting tweets, managing account, DMs, and any write flow.

# Environment setup: source before use
export X_CONSUMER_KEY="your-consumer-key"
export X_CONSUMER_SECRET="your-consumer-secret"
export X_ACCESS_TOKEN="your-access-token"
export X_ACCESS_TOKEN_SECRET="your-access-token-secret"

Legacy aliases such as X_API_KEY, X_API_SECRET, and X_ACCESS_SECRET may exist in older setups. Prefer the X_CONSUMER_* and X_ACCESS_TOKEN_SECRET names when documenting or wiring new flows.

import os
from requests_oauthlib import OAuth1Session

oauth = OAuth1Session(
    os.environ["X_CONSUMER_KEY"],
    client_secret=os.environ["X_CONSUMER_SECRET"],
    resource_owner_key=os.environ["X_ACCESS_TOKEN"],
    resource_owner_secret=os.environ["X_ACCESS_TOKEN_SECRET"],
)

Core Operations

Post a Tweet

resp = oauth.post(
    "https://api.x.com/2/tweets",
    json={"text": "Hello from EGC"}
)
resp.raise_for_status()
tweet_id = resp.json()["data"]["id"]

Post a Thread

def post_thread(oauth, tweets: list[str]) -> list[str]:
    ids = []
    reply_to = None
    for text in tweets:
        payload = {"text": text}
        if reply_to:
            payload["reply"] = {"in_reply_to_tweet_id": reply_to}
        resp = oauth.post("https://api.x.com/2/tweets", json=payload)
        tweet_id = resp.json()["data"]["id"]
        ids.append(tweet_id)
        reply_to = tweet_id
    return ids

Read the full file on GitHub · 230 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 21d ago Changed d5b1dffd68c8
  2. 1mo ago Changed c6f450a74325
  3. 1mo ago First seen · 230 lines · 48 tokens per session scan A d075d432b345

Subscribe to this mod's changes

x-api is a skill published in the GitHub repository Fmarzochi/EGC (67 stars, last pushed today), licensed Apache-2.0. It adds 48 tokens to every session and 1,601 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to x-api, differing in 23 lines, and is treated as a copy.

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