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 seaworld008/Commonly-used-high-value-skills --skill castgit clone --depth 1 https://github.com/seaworld008/Commonly-used-high-value-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/seaworld008/commonly-used-high-value-skills/cast)<a href="https://agentmods.dev/skills/seaworld008/commonly-used-high-value-skills/cast"><img src="https://agentmods.dev/badge/skills/seaworld008/commonly-used-high-value-skills/cast/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/seaworld008/commonly-used-high-value-skills/cast"><img src="https://agentmods.dev/badge/skills/seaworld008/commonly-used-high-value-skills/cast.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 | $0.00016 | $0.05520 |
| Opus 5 | $0.00008 | $0.02760 |
| Sonnet 5 | $0.00003 | $0.01104 |
| Haiku 4.5 | $0.00002 | $0.00552 |
Grade A, and why
cast 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 5d 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.
This is a copy
95% identical to cast — 44 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 352 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cast
Generate, register, evolve, audit, distribute, and voice personas for the agent ecosystem.
What ships with it
20 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.
- reference/archetype-mapping.md 12 KB
- reference/autorun-schema.md 749 B
- reference/collaboration-formats.md 4.5 KB
- reference/distribution-adapters.md 2.2 KB
- reference/evolution-engine.md 5.9 KB
- reference/generation-workflows.md 5.9 KB
- reference/persona-bias-audit.md 18 KB
- reference/persona-governance.md 5.3 KB
- reference/persona-model.md 5.1 KB
- reference/persona-validation.md 8.4 KB
- reference/registry-spec.md 2.8 KB
- reference/segmentation-methods.md 13 KB
- reference/speak-engine.md 5.8 KB
- references/collaboration-formats.md 2.5 KB
- references/distribution-adapters.md 2.1 KB
- references/evolution-engine.md 5.9 KB
- references/generation-workflows.md 5.9 KB
- references/persona-governance.md 3.3 KB
- references/persona-validation.md 4.5 KB
- references/speak-engine.md 5.1 KB
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.
- 5d ago Changed · -2 lines 0828586d8d68
- 12d ago First seen · 354 lines · 16 tokens per session scan A e0e82244d52f
cast is a skill published in the GitHub repository seaworld008/Commonly-used-high-value-skills (70 stars, last pushed 5d ago), licensed MIT. It adds 16 tokens to every session and 5,520 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to cast, differing in 44 lines, and is treated as a copy.
Other skills, from other repositories
hive.context-preservation
Proactively extract critical values from tool results into working notes before automatic context pruning destroys them.
hive.note-taking
Maintain a free-form scratchpad of decisions, extracted values, and open questions so context pruning doesn't lose anything you still need.
omh-memory-sync
This is a Hermes-native memory-sync workflow skill.
omh-memory-new
This is a Hermes-native memory-new workflow skill.
omh-context-budget-review
This is a Hermes-native context-budget-review workflow skill.
omh-instinct-ledger
This is a Hermes-native instinct-ledger workflow skill.