v2ex

v2ex is a skill for Claude Code, Codex from sigcli/sigcli. It costs 180 tokens per session (2,742 once invoked), scanned A, original, MIT.

A connector for V2EX, an online technology discussion forum. It lets an agent browse, search, read, and take part in forum discussions.

In plain words
What is it for?
Use it to browse hot or recent topics, search posts, read discussions, create or reply to topics, thank posts, save topics, follow members, and check in daily.
Why use it?
It removes the need to switch between the coding agent and V2EX to find topics, read replies, or perform routine forum actions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to browse hot or recent topics, search posts, read discussions, create or reply to topics, thank posts, save topics, follow members, and check in daily.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sigcli/sigcli/v2ex
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 sigcli/sigcli --skill v2ex
Clone the repo
git clone --depth 1 https://github.com/sigcli/sigcli

Made for: Claude Code, 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 v2ex

README.md
[![agentmods](https://agentmods.dev/badge/skills/sigcli/sigcli/v2ex/github.svg)](https://agentmods.dev/skills/sigcli/sigcli/v2ex)
Your own site
<a href="https://agentmods.dev/skills/sigcli/sigcli/v2ex"><img src="https://agentmods.dev/badge/skills/sigcli/sigcli/v2ex/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 v2ex

Your own site · 80×15
<a href="https://agentmods.dev/skills/sigcli/sigcli/v2ex"><img src="https://agentmods.dev/badge/skills/sigcli/sigcli/v2ex.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 180 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,742 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
  • 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 Rogue Agent · line 3
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 $0.00180 $0.02742
Opus 5.5 $0.00072 $0.01097
Sonnet 5.5 $0.00036 $0.00548
Haiku 4.5 $0.00018 $0.00274

Measured 2mo ago against content hash 1b11f9581911, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

v2ex 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 2mo ago.

The scan reads SKILL.md. This mod also ships 30 executable files (scripts/v2ex_append.py, scripts/v2ex_client.py, scripts/v2ex_create.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/v2ex/SKILL.md · 279 lines

How it starts

The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.

V2EX

Browse, search, read, and interact with V2EX — the creative workers' community.

Skill Directory

<SKILL_DIR> is the directory containing this SKILL.md file. Determine it ONCE at the start and reuse it.

Setup (run FIRST — every time, before any operation)

You MUST complete this setup before running any script. Do NOT skip this step.

sig status v2ex 2>&1

Check the JSON output fields configured and valid:

  • configured: false → run Provider Setup below. Do NOT proceed without completing it.
  • valid: false (but configured: true) → run sig login v2ex, then re-check.
  • valid: true → detect proxy (see below), then execute the user's request.

Provider Setup

  1. Read <SKILL_DIR>/references/provider-config.yaml
  2. Append the provider block to ~/.sig/config.yaml under providers:
  3. Ask the user: "Do you need a proxy to access this site?" — if yes, add networkProxy: <url> under the provider in config.yaml
  4. Run sig login v2ex (with --network-proxy <url> if proxy was specified)
  5. Verify: run sig status v2ex again — must show valid: true before proceeding

Proxy Detection (after provider is valid)

grep -A15 "^\s*v2ex:" ~/.sig/config.yaml | grep networkProxy | awk '{print $2}'

If this outputs a URL, prefix ALL python3 commands with HTTPS_PROXY=<url> HTTP_PROXY=<url>. If using socks5, convert to socks5h for python (e.g. socks5://... → socks5h://...). If empty, no proxy needed.

Running Scripts

All scripts require setup to be completed first (see above).

Read operations — use sig run to inject cookie (enables authenticated features):

sig run v2ex -- bash -c 'python3 <SKILL_DIR>/scripts/v2ex_hot.py --cookie "$SIG_V2EX_COOKIE"'

Write operations — require sig run (cookie is mandatory):

sig run v2ex -- bash -c 'python3 <SKILL_DIR>/scripts/v2ex_reply.py --cookie "$SIG_V2EX_COOKIE" --topic-id 12345 --content "Nice post!"'

Env var: SIG_V2EX_COOKIE

Read the full file on GitHub · 279 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. 2mo ago First seen · 279 lines · 180 tokens per session scan A 1b11f9581911

Subscribe to this mod's changes

v2ex is a skill published in the GitHub repository sigcli/sigcli (292 stars, last pushed 1mo ago), licensed MIT. It adds 180 tokens to every session and 2,742 once invoked, about $0.0007 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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