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 skills add digital-stoic-org/agent-skills --skill edit-toolgit clone --depth 1 https://github.com/digital-stoic-org/agent-skillsWrote 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/digital-stoic-org/agent-skills/edit-tool)<a href="https://agentmods.dev/skills/digital-stoic-org/agent-skills/edit-tool"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/edit-tool/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/skills/digital-stoic-org/agent-skills/edit-tool"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/edit-tool.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 79 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.00100 | $0.02102 |
| Opus 5.5 | $0.00040 | $0.00841 |
| Sonnet 5.5 | $0.00020 | $0.00420 |
| Haiku 4.5 | $0.00010 | $0.00210 |
Grade A, and why
edit-tool 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.
How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Edit Tool — Unified Skill/Agent/Script Editor
Triage first — because the type decides everything downstream
Pick the tool type before writing anything. The wrong type is expensive to unwind later (a skill that should have been a 0-token bash script pollutes every session; an agent that should have been a skill loses main-context access). Triaging first is what makes this skill worth more than "just write the file".
- Analyze request against the decision tree
- Explain the call to the user so they can catch a bad fit early:
✅ [TYPE] because: pollution cost (~X tokens × Yfreq), context mode (main|fork), key factor - Branch to the matching guide or give direct guidance
graph TD
A[Tool Request] --> AA{Plugin<br/>version/release?}
AA -->|Yes| PLUGIN[✅ edit-plugin]
AA -->|No| B{Deterministic<br/>shell only?}
B -->|Yes| C{AI needed to<br/>decide when/how?}
C -->|No| BASH[✅ Bash Script<br/>0 tokens]
C -->|Yes| D{Token<br/>budget?}
D -->|<500| WRAP[✅ Skill + scripts/]
D -->|>500| SKILL_REF[✅ Skill + reference.md]
B -->|No| E{Pollution<br/>cost?}
E -->|High >2000 tokens<br/>OR deep exploration| W{Multi-agent<br/>control flow?}
W -->|Single reasoning pass| AGENT[✅ Sub-Agent]
W -->|Loops/fan-out/<br/>verify-stages| WORKFLOW[✅ Workflow script<br/>+ optional skill wrapper]
E -->|Medium 500-2000| F{Context<br/>mode?}
F -->|Needs parent ctx + fan-out| FORK[✅ Skill context:fork<br/>NEW v2.1.117+]
F -->|Needs isolation no bias| SUBAGENT[✅ Skill context:subagent]
F -->|Needs main context| SKILL_BIG[✅ Skill + reference.md]
E -->|Low <500| G{Frequency?}
G -->|1+ per session| SKILL[✅ Skill]
G -->|Rare <1/10| DIRECT[❌ No tool needed]
style PLUGIN fill:#B2DFDB,stroke:#00897B,stroke-width:2px,color:#000
style BASH fill:#90EE90,stroke:#000,stroke-width:2px,color:#000
style SKILL fill:#FFD700,stroke:#000,stroke-width:2px,color:#000
style WRAP fill:#FFA500,stroke:#000,stroke-width:2px,color:#000
style SKILL_REF fill:#FFA500,stroke:#000,stroke-width:2px,color:#000
style SKILL_BIG fill:#87CEEB,stroke:#000,stroke-width:2px,color:#000
style FORK fill:#DDA0DD,stroke:#000,stroke-width:2px,color:#000
style SUBAGENT fill:#CE93D8,stroke:#000,stroke-width:2px,color:#000
style AGENT fill:#DDA0DD,stroke:#000,stroke-width:2px,color:#000
style WORKFLOW fill:#9FA8DA,stroke:#000,stroke-width:2px,color:#000
style DIRECT fill:#FFB6C1,stroke:#000,stroke-width:2px,color:#000
What ships with it
3 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.
- 1mo ago First seen · 121 lines · 100 tokens per session scan A 6691fb1efcd2
edit-tool is a skill published in the GitHub repository digital-stoic-org/agent-skills (20 stars, last pushed 12d ago), licensed MIT. It adds 100 tokens to every session and 2,102 once invoked, about $0.0004 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 2026-09-04.
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