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 CDCgov/cdc-open-viz --skill cove-algorithm-improvementgit clone --depth 1 https://github.com/CDCgov/cdc-open-vizWrote 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/cdcgov/cdc-open-viz/cove-algorithm-improvement)<a href="https://agentmods.dev/skills/cdcgov/cdc-open-viz/cove-algorithm-improvement"><img src="https://agentmods.dev/badge/skills/cdcgov/cdc-open-viz/cove-algorithm-improvement/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/cdcgov/cdc-open-viz/cove-algorithm-improvement"><img src="https://agentmods.dev/badge/skills/cdcgov/cdc-open-viz/cove-algorithm-improvement.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 | $0.00052 | $0.01321 |
| Opus 5 | $0.00026 | $0.00660 |
| Sonnet 5 | $0.00010 | $0.00264 |
| Haiku 4.5 | $0.00005 | $0.00132 |
Grade A, and why
cove-algorithm-improvement 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 today.
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 — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cove Algorithm Improvement
Use this skill to evaluate and improve algorithmic behavior in the CDC Open Viz monorepo. Focus on correctness, determinism, data-shape handling, complexity, and maintainability before cosmetic refactors or speculative micro-optimizations.
Scope
Consider algorithms broadly: data normalization, filtering, sorting, grouping, aggregation, scale/domain calculation, legend generation, map layer preparation, migration transforms, URL/config parsing, editor-to-runtime derivation, memoized selectors, reducers, and rendering data pipelines.
Default to an improvement analysis or prioritized implementation menu. Make edits only when the user explicitly asks for implementation or when their wording clearly requests fixes.
When the user asks for algorithm improvements without naming a specific bug, classify options by size and recommend the best next option instead of producing an undifferentiated backlog.
Required Context
Read these before assessing or editing algorithmic behavior:
AGENTS.mddocs/PROJECT_OVERVIEW.mddocs/PACKAGE_DEPENDENCIES.mddocs/TESTING_BEST_PRACTICES.md
Read targeted docs when the affected area appears in code, docs, or the user's request:
docs/MIGRATION_SYSTEM.mdfor config migrations, saved-version transforms, orcoveUpdateWorker.tsdocs/CONFIG_DOCUMENTATION_GUIDE.mdfor config fields, defaults, examples, editor export, orCONFIG.mddocs/DASHBOARD_FILTERS_FLOW.mdanddocs/DASHBOARD_CONDITIONS.mdfor dashboard filtering, shared filters, or condition evaluationdocs/BUBBLE_LAYERS.mdfor map bubble layer transforms, legends, or bubble editor behaviordocs/CHART_Y_AXIS_DOMAIN.mdfor chart domain, brush, bounds, rounding, or axis-label algorithmsdocs/HEATMAP_EDITOR_FLOW.md,docs/PALETTE_MIGRATION.md,docs/MODERNIZATION_SYSTEM.md, or other feature docs when those systems are in scope
Algorithm Review Axes
Look for risks and opportunities across these dimensions:
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.
- today First seen · 98 lines · 52 tokens per session scan A c10e1c1793bd
cove-algorithm-improvement is a skill published in the GitHub repository CDCgov/cdc-open-viz (55 stars, last pushed today), licensed Apache-2.0. It adds 52 tokens to every session and 1,321 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 2026-09-12.
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