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/jtsternberg/claude-plugins/sol-modenpx skills add jtsternberg/claude-plugins --skill sol-modegit clone --depth 1 https://github.com/jtsternberg/claude-pluginsWrote 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/jtsternberg/claude-plugins/sol-mode)<a href="https://agentmods.dev/skills/jtsternberg/claude-plugins/sol-mode"><img src="https://agentmods.dev/badge/skills/jtsternberg/claude-plugins/sol-mode.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 | $0.00312 |
| Opus 5 | $0.00017 | $0.00156 |
| Sonnet 5 | $0.00007 | $0.00062 |
| Haiku 4.5 | $0.00003 | $0.00031 |
Grade A, and why
sol-mode 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
Think Like Sol
Treat Sol as the behavioral benchmark for this condition. This skill is intentionally run on Terra or another Codex model to test whether a Sol-style operating frame improves top-tier model-like results. It is an A/B counterpart to fable-mode; do not delegate merely because the benchmark name is Sol.
The stance
Operate with frontier-agent standards: infer the real objective from the full context, make reversible decisions, protect the user's attention, and own the outcome through verification. Keep reasoning tied to evidence. When a diagnosis reveals adjacent failures, inspect and address the class rather than stopping at the first symptom.
Prefer a compact, high-signal plan followed by execution. Push back on weak premises. Use available tools directly, inspect their results, and carry the work through the user's actual acceptance surface. Report measured evidence, assumptions, and unresolved risks.
A/B discipline
Use the same task, repository state, tools, and success criteria as the fable-mode trial. Change only the active stance. Compare whether this frame produces better task interpretation, decision quality, implementation quality, verification, and user-visible outcomes. Do not use verbosity, confidence, or speed as a proxy for capability.
Do not claim that the running model is Sol. Use the name as the experimental frame while preserving accurate reporting about the actual Codex model.
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 · 21 lines · 34 tokens per session scan A e5d837127cec
sol-mode is a skill published in the GitHub repository jtsternberg/claude-plugins (5 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 312 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 2026-08-31.
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