Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add indranilbanerjee/socialforge/plugin install socialforgeWrote 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/indranilbanerjee/socialforge/price-check)<a href="https://agentmods.dev/skills/indranilbanerjee/socialforge/price-check"><img src="https://agentmods.dev/badge/skills/indranilbanerjee/socialforge/price-check/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/indranilbanerjee/socialforge/price-check"><img src="https://agentmods.dev/badge/skills/indranilbanerjee/socialforge/price-check.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 | $0.00099 | $0.01595 |
| Opus 5 | $0.00049 | $0.00797 |
| Sonnet 5 | $0.00020 | $0.00319 |
| Haiku 4.5 | $0.00010 | $0.00160 |
Grade A, and why
price-check 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 12d 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 — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/socialforge:price-check — What this run will cost, looked up today
Prices here are never remembered. They are looked up, recorded with the URL they came from, and expire after 24 hours.
That is not caution for its own sake. On 2026-07-31 a major video model shipped one day after this plugin's model registry was last reviewed, and the registry never knew. In the same week, a provider already wired into SocialForge was selling video at $0.01/second while the old cost table assumed $0.40. Any price baked into a plugin is wrong on a timetable nobody controls.
The rule
Never state a cost you did not look up in this session or the last 24 hours.
Not from this file. Not from the model registry. Not from what you remember a
model costing. If price_book.py says a price is unknown or stale, that is
the answer — go and read the provider's page, then record what you read.
Looking a price up
- Find where to look:
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/price_book.py" --action providers
That returns each provider's pricing URL and its auth shape. Two things it will tell you that save time:
- Auth differs per provider.
Authorization: Bearer …for WaveSpeed and Kie,Authorization: Key …for fal.ai, application-default credentials for Vertex. Getting this wrong is the most common reason a first call fails. - Kie AI blocks automated fetches (measured: HTTP 403). Do not report that as "no price found" — ask the user for the rate instead, and record it with the pricing page as the source.
-
Fetch the pricing page with your own web tools and read the actual number.
-
Record it, with the URL you read it from:
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/price_book.py" --action record \
--model "kling-3.0-std" --provider wavespeed \
--unit second --price 0.084 --source https://wavespeed.ai/pricing
A record without a source URL is rejected. That is deliberate — a price with no provenance is a guess wearing a number's clothes.
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.
- 12d ago First seen · 156 lines · 99 tokens per session scan A f1aa59c65675
price-check is a skill published in the GitHub repository indranilbanerjee/socialforge (38 stars, last pushed 26d ago), licensed MIT. It adds 99 tokens to every session and 1,595 once invoked, about $0.0005 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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