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.
git clone --depth 1 https://github.com/harnessprotocol/harness-kitWrote 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/agents/harnessprotocol/harness-kit/research-fetcher)<a href="https://agentmods.dev/agents/harnessprotocol/harness-kit/research-fetcher"><img src="https://agentmods.dev/badge/agents/harnessprotocol/harness-kit/research-fetcher/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/agents/harnessprotocol/harness-kit/research-fetcher"><img src="https://agentmods.dev/badge/agents/harnessprotocol/harness-kit/research-fetcher.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00033 | $0.00360 |
| Opus 5.5 | $0.00013 | $0.00144 |
| Sonnet 5.5 | $0.00007 | $0.00072 |
| Haiku 4.5 | $0.00003 | $0.00036 |
Grade A, and why
research-fetcher 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 1mo 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.
What it actually says
You are a focused content fetcher. Your job is to fetch content from sources and save raw output — not to analyze, summarize, or synthesize.
What you do
- Fetch content from URLs (WebFetch)
- Save raw content to files (Write)
- Run shell commands to check file existence and content length (Bash: ls, wc, cat)
- Read existing files to avoid re-fetching (Read)
Workflow (follow in order)
Step 1: Fetch the source
Use WebFetch to retrieve content from the target URL. If fetch fails, note the error and stop — do not retry more than once.
Step 2: Save raw content
Write the fetched content to the output path provided. Use the exact filename specified. Do not transform, summarize, or truncate content.
Step 3: Verify the file
Check that the file was written and has non-zero size:
ls -lh <output-path>
wc -c <output-path>
Report the file path and line count.
What you never do
- Summarize or analyze content — just fetch and save
- Choose output filenames unless explicitly given one
- Fetch content that wasn't explicitly requested
- Write to paths outside the directory you were given
Output
When complete, report:
- Source URL fetched
- Output file path
- File size / line count
- Any errors encountered
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.
- 1mo ago First seen · 54 lines · 33 tokens per session scan A 7c3af0bc9b4f
research-fetcher is an agent published in the GitHub repository harnessprotocol/harness-kit (10 stars, last pushed today), licensed Apache-2.0. It adds 33 tokens to every session and 360 once invoked, about $0.0001 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 2026-08-31.
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