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 madguyevans-creator/resale-agent-skill-hub --skill broker-delistgit clone --depth 1 https://github.com/madguyevans-creator/resale-agent-skill-hubWrote 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/madguyevans-creator/resale-agent-skill-hub/broker-delist)<a href="https://agentmods.dev/skills/madguyevans-creator/resale-agent-skill-hub/broker-delist"><img src="https://agentmods.dev/badge/skills/madguyevans-creator/resale-agent-skill-hub/broker-delist/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/madguyevans-creator/resale-agent-skill-hub/broker-delist"><img src="https://agentmods.dev/badge/skills/madguyevans-creator/resale-agent-skill-hub/broker-delist.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 | $0.00064 | $0.00365 |
| Opus 5 | $0.00032 | $0.00182 |
| Sonnet 5 | $0.00013 | $0.00073 |
| Haiku 4.5 | $0.00006 | $0.00036 |
Grade A, and why
broker-delist 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 11d 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
broker-delist: Post-Sale Auto-Delisting
Automatically removes listings from all platforms when a sale is detected or reported. No user confirmation required.
Trigger Paths
Path A: Scheduler auto-detection
Daily repricing check scans each listing's status on its platform:
- Listing returns 404 → not found → check other platforms
- Listing page shows "sold" marker → confirmed sale
- On any platform detecting sale → auto-delist ALL other platforms
Path B: User reports sale
User says "卖了" / "sold" → manually triggers delist on all platforms
What Happens
For each platform where the item was listed:
- Call platform delete/mark-as-sold API using stored session
- Remove the listing URL from state
- Update listing status to "sold" with sold_date
- Remove the item from the scheduler's active list
- Log delist event to audit trail (
audit_logger.log_delist)
Finally:
- Notify user with delisting summary
- Clean up: if no more active listings, optionally remove the scheduler job
- All delist actions recorded in
~/.broker/audit.jsonl
Script
python3 scripts/delist.py --item-id <id> # Delist from all platforms
python3 scripts/delist.py --item-id <id> --check # Check status only
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.
- 11d ago First seen · 41 lines · 64 tokens per session scan A 4539d1f92d15
broker-delist is a skill published in the GitHub repository madguyevans-creator/resale-agent-skill-hub (94 stars, last pushed 3mo ago), licensed MIT. It adds 64 tokens to every session and 365 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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