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 agentmods add skills/stevesolun/ctx/to-specnpx skills add stevesolun/ctx --skill to-specgit clone --depth 1 https://github.com/stevesolun/ctxWrote 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/stevesolun/ctx/to-spec)<a href="https://agentmods.dev/skills/stevesolun/ctx/to-spec"><img src="https://agentmods.dev/badge/skills/stevesolun/ctx/to-spec.svg" alt="Measured on agentmods" 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 | $0.00034 | $0.00245 |
| Opus 5 | $0.00017 | $0.00122 |
| Sonnet 5 | $0.00007 | $0.00049 |
| Haiku 4.5 | $0.00003 | $0.00024 |
Grade A, and why
to-spec 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.
What it actually says
Create a spec
Capture the decisions already made. Resolve only gaps that would materially change the intended behavior, scope, or feasibility; do not reopen settled questions for the sake of completing a template.
Inspect the relevant implementation, tests, domain language, and architectural decisions when they improve fidelity. Keep facts observed in the repository distinct from decisions inferred from the conversation.
Describe:
- the user-visible problem and desired outcome;
- behavior, edge cases, and acceptance criteria;
- constraints and decisions that implementation must preserve;
- relevant interfaces or test seams when they are already known; and
- explicit exclusions and unresolved questions.
Prefer durable behavioral contracts over file paths and implementation recipes. Include code or a type shape only when it records a decision more precisely than prose.
Use the spec format when a structured document helps. Return, save, or publish the spec in the destination the user requested. Treat tracker publication and label changes as separate mutations requiring clear scope.
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.
- 5d ago First seen · 31 lines · 34 tokens per session scan A c3d4312d6f40
to-spec is a skill published in the GitHub repository stevesolun/ctx (583 stars, last pushed 5d ago), licensed MIT. It adds 34 tokens to every session and 245 once invoked, about $0.0002 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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