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 Kaguara/emerging-market-skills --skill payload-budgetsgit clone --depth 1 https://github.com/Kaguara/emerging-market-skillsWrote 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/kaguara/emerging-market-skills/payload-budgets)<a href="https://agentmods.dev/skills/kaguara/emerging-market-skills/payload-budgets"><img src="https://agentmods.dev/badge/skills/kaguara/emerging-market-skills/payload-budgets/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/kaguara/emerging-market-skills/payload-budgets"><img src="https://agentmods.dev/badge/skills/kaguara/emerging-market-skills/payload-budgets.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 | $0.00087 | $0.02306 |
| Opus 5 | $0.00044 | $0.01153 |
| Sonnet 5 | $0.00017 | $0.00461 |
| Haiku 4.5 | $0.00009 | $0.00231 |
Grade A, and why
payload-budgets 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 — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Payload budgets
The constraint
Bytes cost money that the user paid in advance, arrive over a link that drops, and land on a device that is already full. A download that fails at 80% is retried on a prepaid bundle, which means the second attempt costs real money for nothing. Storage is the other half: on a 16GB device sitting permanently near full, your app is competing for space with photographs of the user's family, and it will lose.
The number that matters is the cold, uncached, first-attempt download on a congested cell. Every other number flatters you.
Hard rules
| ID | Rule | Severity |
|---|---|---|
| SIZE-001 | Declare a byte budget per platform before writing the feature. | critical |
| SIZE-002 | Keep the Android initial download at or below 15MB. | critical |
| SIZE-003 | Budgets are enforced by CI and fail the build when exceeded. | critical |
| SIZE-004 | Measure the cold-cache first visit on a tier C device, not a warm reload. | warning |
| SIZE-005 | Serve images sized to the rendered box, in a modern format, responsively. | warning |
| SIZE-006 | Cap first-load JavaScript on the critical path at 200KB compressed. | warning |
| SIZE-007 | Every third-party script has a named owner and counts against the budget. | warning |
| SIZE-008 | Load secondary features on demand rather than at install or first paint. | warning |
| SIZE-009 | Never block first paint on a web font. | warning |
| SIZE-010 | Budget the installed storage footprint, not only the download. | advisory |
Full detection criteria and remedies in rules.yml.
Judgment
The budget is a product decision wearing engineering clothes. "We have 15MB" forces the question of which features a first-time user actually needs, and that question has a better answer than "all of them". Teams that treat size as an optimisation phase arrive at the end of the project with 40MB and no way to get back. Teams that treat it as a constraint arrive with a smaller, clearer product. Set the number first; it does more design work than it looks like.
What ships with it
2 files 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.
- 12d ago First seen · 222 lines · 87 tokens per session scan A 06442516ea15
payload-budgets is a skill published in the GitHub repository Kaguara/emerging-market-skills (7 stars, last pushed 17d ago), licensed MIT. It adds 87 tokens to every session and 2,306 once invoked, about $0.0004 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 2026-08-31.
Other skills, from other repositories
powersync
Best practices for building and maintaining applications with PowerSync: Cloud and self-hosted setup, sync configuration, client SDK usage, backend integration (Supabase, custom Postgres, MongoDB, Azure DocumentDB, MySQL, MSSQL), schema changes, watch and reactive queries (useQuery), attachments, the upload queue, and…
exploratory-data-analysis
Perform bounded, local exploratory analysis of explicitly supported scientific files. Use for redacted CSV/TSV/JSON profiles; optional NumPy, HDF5, FASTA/FASTQ, and basic image metadata inspection; missingness/leakage audits; outlier and transformation sensitivity; and rigorous EDA report scaffolds. Other domain…
google-ads-audit
Google Ads account audit and business context setup. Use for account-health audits and business-context setup. Trigger on "audit my ads", "ads audit", "set up my ads", "onboard", "account overview", "how's my account", "ads health check", "what should I fix in my ads", or when the user is new to NotFair and hasn't run…
data-charts-tako
Search and visualize the world's data - get charts, insights, and embeddable knowledge cards for finance, economics, demographics, sports, and more.
webhook-management
Configure and validate CCAM webhook targets across supported chat, incident, automation, and generic providers. Use when listing provider requirements, creating or updating a target, scoping it to alert rules, sending a test notification, reviewing delivery history, or deleting a target.
gesellschaftsrechtliche-satzungen-agb
Für Gesellschaftsrechtliche Satzungen AGB Abgrenzung: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt. Fachgebiet: AGB-Recht-Prüfer. Route: gesellschaftsrechtliche-satzungen-agb.