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 agentmods add skills/opencoven/coven/tinyfish-fetchnpx skills add OpenCoven/coven --skill tinyfish-fetchgit clone --depth 1 https://github.com/OpenCoven/covenWrote 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/opencoven/coven/tinyfish-fetch)<a href="https://agentmods.dev/skills/opencoven/coven/tinyfish-fetch"><img src="https://agentmods.dev/badge/skills/opencoven/coven/tinyfish-fetch.svg" alt="Measured on agentmods" 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 | $0.00043 | $0.00671 |
| Opus 5 | $0.00022 | $0.00336 |
| Sonnet 5 | $0.00009 | $0.00134 |
| Haiku 4.5 | $0.00004 | $0.00067 |
Grade A, and why
tinyfish-fetch scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST "https://api.fetch.tinyfish.ai" \ How it starts
The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TinyFish Fetch
Fetch one or more URLs via the TinyFish Fetch API. Returns rendered page content (markdown by default), optionally with screenshots, behind an optional proxy.
Requires: TINYFISH_API_KEY environment variable.
Pre-flight Check (REQUIRED)
Before calling the API, verify the key is present:
[ -n "$TINYFISH_API_KEY" ] && echo "TINYFISH_API_KEY is set" || echo "TINYFISH_API_KEY is NOT set"
If the key is not set, stop and ask the user to add it. Get one at https://agent.tinyfish.ai/api-keys. Do NOT fall back to other fetch tools.
Basic Fetch
curl -X POST "https://api.fetch.tinyfish.ai" \
-H "X-API-Key: $TINYFISH_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"urls": ["https://example.com"],
"format": "markdown"
}'
format accepts markdown (default), html, or screenshot.
Multiple URLs
curl -X POST "https://api.fetch.tinyfish.ai" \
-H "X-API-Key: $TINYFISH_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"urls": [
"https://example.com",
"https://example.org"
],
"format": "markdown"
}'
Proxy / Geo Targeting
curl -X POST "https://api.fetch.tinyfish.ai" \
-H "X-API-Key: $TINYFISH_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"urls": ["https://example.com"],
"format": "markdown",
"proxy_config": { "country": "US" }
}'
Helper Script
scripts/fetch.sh <url> [<url> ...] [--format markdown|html|screenshot] [--country CC] wraps the curl call:
scripts/fetch.sh https://example.com
scripts/fetch.sh https://example.com https://example.org --format html
scripts/fetch.sh https://example.com --format markdown --country US
Response Shape
{
"results": [
{
"url": "https://example.com",
"status": 200,
"content": "# Example Domain\n\nThis domain is for use…",
"format": "markdown"
}
]
}
Read results[].content for the rendered page. Screenshot format returns base64-encoded PNG data.
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.
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.
- 4d ago First seen · 94 lines · 43 tokens per session scan A ab22b696c644
tinyfish-fetch is a skill published in the GitHub repository OpenCoven/coven (46 stars, last pushed today), licensed MIT. It adds 43 tokens to every session and 671 once invoked, about $0.0002 per session on Opus 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 2026-08-30.
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