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 arimanyus/hermes-merchant --skill browser-harness-ats-automationgit clone --depth 1 https://github.com/arimanyus/hermes-merchantWrote 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/arimanyus/hermes-merchant/browser-harness-ats-automation)<a href="https://agentmods.dev/skills/arimanyus/hermes-merchant/browser-harness-ats-automation"><img src="https://agentmods.dev/badge/skills/arimanyus/hermes-merchant/browser-harness-ats-automation/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/arimanyus/hermes-merchant/browser-harness-ats-automation"><img src="https://agentmods.dev/badge/skills/arimanyus/hermes-merchant/browser-harness-ats-automation.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 | $0.00056 | $0.03014 |
| Opus 5 | $0.00028 | $0.01507 |
| Sonnet 5 | $0.00011 | $0.00603 |
| Haiku 4.5 | $0.00006 | $0.00301 |
Grade A, and why
browser-harness-ats-automation 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 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.
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 — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.
browser-harness-ats-automation
Automate job applications on ATS platforms (Ashby, Greenhouse, Workday) using browser-use/browser-harness with CDP.
Critical architecture: ATS forms live in iframes
Modern ATS platforms (Ashby, Greenhouse) render application forms inside cross-origin iframes. This is the root cause of most automation failures. You MUST attach to the iframe session before any DOM operations.
Standard setup
# Start Xvfb + Chrome with remote debugging
Xvfb :99 -screen 0 1280x800x24 &
export DISPLAY=:99
/usr/bin/chromium-browser --headless --no-sandbox --disable-gpu \
--remote-debugging-port=9222 \
--remote-debugging-address=127.0.0.1 &
sleep 3
# Install browser-harness
git clone https://github.com/browser-use/browser-harness.git
cd browser-harness && uv sync && uv tool install -e .
# Start daemon
cd browser-harness && nohup uv run bu-daemon &
sleep 2
CDP socket pattern
The socket is at /tmp/bu-default.sock. Use this helper inside uv run browser-harness <<'PY':
import socket, json
def cdp(method, session_id=None, **params):
sk = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
sk.connect("/tmp/bu-default.sock")
r = {"method": method, "params": {"session_id": session_id, **params} if session_id else params}
sk.sendall((json.dumps(r) + "\n").encode())
data = b""
while not data.endswith(b"\n"):
chunk = sk.recv(1 << 20)
if not chunk: break
data += chunk
sk.close()
return json.loads(data).get("result", {})
FRAME_ID = "DFF978A387F9E4D8D8A8AF1EF7385A08"
sid = cdp("Target.attachToTarget", targetId=FRAME_ID, flatten=True).get("sessionId")
Finding the right iframe target
targets = cdp("Target.getTargets")
for t in targets.get("result", {}).get("targetInfos", []):
if t["type"] in ("page", "iframe"):
print(f" {t['type']}: {t.get('url','')[:80]} id={t['targetId']}")
File upload in iframes
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.
- 13d ago First seen · 282 lines · 56 tokens per session scan A 07f751e0e280
browser-harness-ats-automation is a skill published in the GitHub repository arimanyus/hermes-merchant (36 stars, last pushed 4mo ago), licensed MIT. It adds 56 tokens to every session and 3,014 once invoked, about $0.0003 per session on Opus 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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