tavily

tavily is a skill for Claude Code from VKirill/claude-lane-stack. It costs 91 tokens per session (1,224 once invoked), scanned A, original, MIT.

A search tool that calls the Tavily web-search service and saves results, source URLs, and notes for later use. It is intended for research that needs cited sources rather than a quick visit to one known page.

In plain words
What is it for?
Use it to gather facts, examples, quotations, and URLs for a cited report or writing project, including research split across several searches.
Why use it?
It keeps search results and supporting evidence in organised files instead of losing them in a chat. It also stops when the required API key is missing.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the lane-stack plugin — 62 skills, 4 commands, 13 agents, 1 MCP server shipped together

Good fit Use it to gather facts, examples, quotations, and URLs for a cited report or writing project, including research split across several searches.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vkirill/claude-lane-stack/tavily
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 VKirill/claude-lane-stack --skill tavily
Clone the repo
git clone --depth 1 https://github.com/VKirill/claude-lane-stack

Made for: Claude Code.

Or install lane-stack, the plugin that ships this one along with the rest of its 62 skills, 4 commands, 13 agents, 1 MCP server.

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 tavily

README.md
[![agentmods](https://agentmods.dev/badge/skills/vkirill/claude-lane-stack/tavily/github.svg)](https://agentmods.dev/skills/vkirill/claude-lane-stack/tavily)
Your own site
<a href="https://agentmods.dev/skills/vkirill/claude-lane-stack/tavily"><img src="https://agentmods.dev/badge/skills/vkirill/claude-lane-stack/tavily/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 tavily

Your own site · 80×15
<a href="https://agentmods.dev/skills/vkirill/claude-lane-stack/tavily"><img src="https://agentmods.dev/badge/skills/vkirill/claude-lane-stack/tavily.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,224 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 6 findings, 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 MCP Rug Pull · line 18
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Data Exfiltration · line 41
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 41
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 68
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 77
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
  • medium Data Exfiltration · line 68
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 $0.00091 $0.01224
Opus 5.5 $0.00036 $0.00490
Sonnet 5.5 $0.00018 $0.00245
Haiku 4.5 $0.00009 $0.00122

Measured 13d ago against content hash 805d792050b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tavily 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 13d 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.

curl -sS -X POST https://api.tavily.com/search \
plugins/lane-stack/skills/tavily/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tavily

Host skill. Not the skills.sh tvly CLI pack. REST only.

Session agent: tavily (cc tavily). Copy-lead writes under .agents/copy/research/inbox/.

Key, in this order: $TAVILY_API_KEY if it is set (BB sessions get it from the Env Catalog); else the Env Catalog entry TAVILY_API_KEY (env_get); else, only in a terminal session outside BB, the file:

if [ -z "${TAVILY_API_KEY:-}" ] && [ -f ~/secrets/tavily.env ]; then set -a; source ~/secrets/tavily.env; set +a; fi
test -n "${TAVILY_API_KEY:-}" || { echo "MISSING TAVILY_API_KEY (env, Env Catalog or ~/secrets/tavily.env)"; exit 1; }

Inside a BB / Lane Pilot session do not read ~/secrets/tavily.env: the key is already in the session or in the Env Catalog. No key anywhere → stop and report. Do not print the key. Do not npx skills add.

Query = search string, < 400 chars, not an essay. Split fat questions into 2–4 calls.

One note per query. Never append to a single web.md.

if [ -d .agents/copy ]; then
  INBOX=.agents/copy/research/inbox
else
  INBOX=.agents/research/inbox
fi
STAMP=$(date +%F)-<slug>
mkdir -p "$INBOX"

Copy the research-note template to $INBOX/$STAMP.md. Dump JSON beside it as $STAMP.json. Add a row to .agents/copy/INDEX.md when that board exists. Do not dump raw HTML into chat.

search (default)

Facts, examples, language snippets, a handful of URLs. Seconds.

curl -sS -X POST https://api.tavily.com/search \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query":"<QUERY>","max_results":5,"search_depth":"basic","include_answer":true}' \
  > "$INBOX/$STAMP.json"

Useful fields (omit if unused):

Field Values
search_depth basic (default), advanced
max_results 1–20
topic general, news, finance
time_range day, week, month, year
include_domains / exclude_domains arrays of hosts
include_raw_content false unless you need page text

Read the full file on GitHub · 103 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. 13d ago Changed · +2 lines · +24 tokens per session 805d792050b9
  2. 1mo ago First seen · 101 lines · 67 tokens per session scan A c6bb0cd1b5bd

Subscribe to this mod's changes

tavily is a skill published in the GitHub repository VKirill/claude-lane-stack (122 stars, last pushed today), licensed MIT. It adds 91 tokens to every session and 1,224 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

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