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 sigcli/sigcli --skill v2exgit clone --depth 1 https://github.com/sigcli/sigcliWrote 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/sigcli/sigcli/v2ex)<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.
<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>- NVIDIA SkillSpector warn
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.
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 | $0.00180 | $0.02742 |
| Opus 5.5 | $0.00072 | $0.01097 |
| Sonnet 5.5 | $0.00036 | $0.00548 |
| Haiku 4.5 | $0.00018 | $0.00274 |
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.
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 — 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) → runsig login v2ex, then re-check.valid: true→ detect proxy (see below), then execute the user's request.
Provider Setup
- Read
<SKILL_DIR>/references/provider-config.yaml - Append the provider block to
~/.sig/config.yamlunderproviders: - Ask the user: "Do you need a proxy to access this site?" — if yes, add
networkProxy: <url>under the provider in config.yaml - Run
sig login v2ex(with--network-proxy <url>if proxy was specified) - Verify: run
sig status v2exagain — must showvalid: truebefore 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
What ships with it
31 files 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.
- references/provider-config.yaml 519 B
- scripts/v2ex_append.py 1.9 KB runs code
- scripts/v2ex_client.py 7.5 KB runs code
- scripts/v2ex_create.py 2.5 KB runs code
- scripts/v2ex_daily.py 2.0 KB runs code
- scripts/v2ex_favorite.py 1.9 KB runs code
- scripts/v2ex_follow.py 1.7 KB runs code
- scripts/v2ex_hot.py 987 B runs code
- scripts/v2ex_latest.py 1002 B runs code
- scripts/v2ex_member.py 2.0 KB runs code
- scripts/v2ex_node.py 2.5 KB runs code
- scripts/v2ex_notifications.py 1.4 KB runs code
- scripts/v2ex_profile.py 2.3 KB runs code
- scripts/v2ex_reply.py 1.8 KB runs code
- scripts/v2ex_search.py 2.1 KB runs code
- scripts/v2ex_thank.py 2.2 KB runs code
- scripts/v2ex_topic.py 1.9 KB runs code
- tests/test_append.py 1.7 KB runs code
- tests/test_create.py 1.8 KB runs code
- tests/test_daily.py 1.4 KB runs code
- tests/test_favorite.py 1.5 KB runs code
- tests/test_follow.py 1.5 KB runs code
- tests/test_hot.py 1.9 KB runs code
- tests/test_latest.py 1.3 KB runs code
- tests/test_member.py 2.0 KB runs code
- tests/test_node.py 1.8 KB runs code
- tests/test_notifications.py 1.6 KB runs code
- tests/test_reply.py 1.7 KB runs code
- tests/test_search.py 2.1 KB runs code
- tests/test_thank.py 1.6 KB runs code
- tests/test_topic.py 2.9 KB runs code
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.
- 2mo ago First seen · 279 lines · 180 tokens per session scan A 1b11f9581911
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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