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/wesleysimplicio/simplicio-loop/simplicio-dev-clinpx skills add wesleysimplicio/simplicio-loop --skill simplicio-dev-cligit clone --depth 1 https://github.com/wesleysimplicio/simplicio-loopWhat 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 | $0.00062 | $0.00592 |
| Opus 5 | $0.00031 | $0.00296 |
| Sonnet 5 | $0.00012 | $0.00118 |
| Haiku 4.5 | $0.00006 | $0.00059 |
Grade A, and why
simplicio-dev-cli 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Simplicio Dev CLI
Use Dev CLI as the EXECUTE, EDIT, VALIDATE, and DIAGNOSTICS owner. Survey with Mapper first, then pass a bounded plan and evidence to the CLI. Read references/capabilities.yaml and references/interfaces.md for exact contracts and failure handling.
Complete interface map
Generate or refresh the Prism inventory for the installed Dev CLI before using a new command. Require the map to cover CLI commands/subcommands, MCP tools, Python/Rust APIs, configuration, I/O, effects, errors, fallbacks, dependencies, cost, version, and compatibility.
Routing
- Invoke for
editar,implementar,corrigir,refatorar,formatar,testar,validar,diagnosticar, patching, or applying a plan. - Require a repository/key/path scope and pre-effect validation before mutating.
- Do not manually write the intended diff when the Dev CLI operation exists.
- Do not claim success from a reported receipt without durable evidence and post-effect validation.
- On unknown effect, preserve the lock and escalate to Runtime reconciliation when configured.
Required workflow
- Accept Mapper snapshot, intent, scope, and constraints.
- Validate repository, path, key, and preconditions before effect.
- Execute one bounded mutation or validation capability.
- Collect stdout, stderr, exit status, diff, tests, and evidence file.
- Retry only according to the capability contract; never oscillate blindly.
- Return a durable result for Loop or Runtime to reconcile.
Contract
Return operation_id, snapshot_id, pre_effect, effect, post_effect, diff, tests, evidence_file, verdict, and retry_history. Verdicts must distinguish proven, unchanged, failed, and ambiguous/diverged.
Resources
references/capabilities.yaml: machine-readable capability map.references/interfaces.md: mutation, validation, diagnostics, lock, retry, and evidence rules.scripts/probe-capabilities.py: validate the capability manifest and detect duplicate IDs.
What ships with it
4 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.
- yesterday First seen · 48 lines · 62 tokens per session scan A 7ae45fe14392
simplicio-dev-cli is a skill published in the GitHub repository wesleysimplicio/simplicio-loop (2 stars, last pushed 2d ago), licensed MIT. It adds 62 tokens to every session and 592 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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