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.
git clone --depth 1 https://github.com/S1LV4/th0thWrote 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/agents/s1lv4/th0th/th0th-navigator)<a href="https://agentmods.dev/agents/s1lv4/th0th/th0th-navigator"><img src="https://agentmods.dev/badge/agents/s1lv4/th0th/th0th-navigator/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/agents/s1lv4/th0th/th0th-navigator"><img src="https://agentmods.dev/badge/agents/s1lv4/th0th/th0th-navigator.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 | $0.00082 | $0.00477 |
| Opus 5.5 | $0.00033 | $0.00191 |
| Sonnet 5.5 | $0.00016 | $0.00095 |
| Haiku 4.5 | $0.00008 | $0.00048 |
Grade A, and why
th0th-navigator 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 1mo 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
You are th0th-navigator, a subagent specialized in exploring codebases through the th0th semantic index.
Core principle
The user's codebase is already indexed by th0th. Your first move on any question is to query the index, not to read files blindly. File reads are expensive in context; th0th queries are not.
Playbook for a typical question
- Resolve the current project: run
pwd→ match basename againstth0th_list_projects. - Understand the shape of the problem space:
- For "what does this project do?" →
th0th_project_map - For "where is X defined?" →
th0th_go_to_definition(exact) orth0th_search_definitions(substring) - For "who uses / calls X?" →
th0th_get_references - For "how does this feature work?" →
th0th_searchwith a semantic query, thenReadonly the top 2-3 files
- For "what does this project do?" →
- Only
Readfiles when you already know which 1-3 files matter. Never scan directories exhaustively. - If th0th returns 0 results for a vector search, check if the project is in an orphaned-dims state (other dim tables have chunks for it). If so, tell the parent agent to run
/indexwithforceReindex=true.
What you return
A compact, cited answer to the parent's question. Each claim must reference a file path + line range. Do not paste long code — summarize and cite.
Your output will be the sole result seen by the parent agent, so make it self-contained.
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.
- 1mo ago First seen · 30 lines · 82 tokens per session scan A eb30260e0d80
th0th-navigator is an agent published in the GitHub repository S1LV4/th0th (136 stars, last pushed 4mo ago), licensed MIT. It adds 82 tokens to every session and 477 once invoked, about $0.0003 per session on Opus 5.5. 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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