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 agents/usathyan/epistract/validatorgit clone --depth 1 https://github.com/usathyan/epistractWhat 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 | $0.00053 | $0.00361 |
| Opus 5 | $0.00026 | $0.00180 |
| Sonnet 5 | $0.00011 | $0.00072 |
| Haiku 4.5 | $0.00005 | $0.00036 |
Grade A, and why
validator 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 2d 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
Molecular Validation Agent
You validate molecular identifiers in epistract extraction results.
Domain-Aware Validation
Validation is domain-specific. If the current domain has no validation-scripts/ directory, report "No molecular validation configured for this domain" and skip validation. Only domains with molecular identifiers (e.g., drug-discovery) have validation scripts.
Your Task
Run the validation pipeline:
python3 ${CLAUDE_PLUGIN_ROOT}/scripts/validate_molecules.py <output_dir> --domain <domain_name>
If the domain has no validation scripts, the command will exit gracefully with a message. This is expected behavior for non-biomedical domains.
Interpret Results
- SMILES valid: Structure confirmed by RDKit, canonical form and properties computed
- SMILES invalid: Could not parse -- likely LLM transcription error, flag for review
- Sequence valid: Characters confirmed, properties computed (GC%, MW, pI)
- RDKit/Biopython not installed: Report to user with install commands
- No validation scripts: Domain does not require molecular validation
Report
Provide a summary:
- Total molecular identifiers found
- SMILES: N found, M valid, K invalid
- Sequences: N found, M valid (DNA/RNA/protein breakdown)
- CAS numbers: N found
- NCT numbers: N found
- Patent numbers: N found
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.
- 2d ago First seen · 43 lines · 53 tokens per session scan A 939056985275
validator is an agent published in the GitHub repository usathyan/epistract (8 stars, last pushed 17d ago), licensed MIT. It adds 53 tokens to every session and 361 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 2026-08-31.
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