What is skill-digester?

A skill for reviewing and improving the description of another coding-agent skill, and for guiding its installation into a user or project skills directory. An Agent Skill is a folder of instructions and supporting files that teaches an agent how to perform a task.

Use it to digest a skill description, find a skill by name or path, rewrite its description, or install an Agent Skill for a user or project.

It helps locate the right skill, make its description clearer, and choose where an installed skill should live.

skill-digester — Skill by lessweb

Install

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.

agentmods

npx agentmods add skills/lessweb/deepcode-cli/skill-digester

Any agent

npx skills add lessweb/deepcode-cli --skill skill-digester

Clone the repo

git clone --depth 1 https://github.com/lessweb/deepcode-cli

Made for: Claude Code, Codex.

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,564 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00070	$0.02564
Opus 5	$0.00035	$0.01282
Sonnet 5	$0.00014	$0.00513
Haiku 4.5	$0.00007	$0.00256

Measured yesterday against content hash e616d7348d21, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-digester 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/find-skill.js), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

packages/core/templates/skills/bundled/skill-digester/SKILL.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Digester

Use this skill for two related tasks:

Review and optionally rewrite the description field of another DeepCode skill.
Guide installation of an Agent Skill into an interoperable .agents/skills root.

Interaction Rule

Whenever user input is needed, call the AskUserQuestion tool. Do not ask follow-up questions as plain assistant text. This includes missing skill names or paths, install scope, language preference, duplicate matches, malformed frontmatter decisions, and whether to apply a recommended rewrite.

Workflow

First classify the request:

If the user asks to install, add, copy, or place an Agent Skill, use the Install Agent Skill Workflow.
Otherwise, use the Digest Description Workflow.

Digest Description Workflow

Identify the target skill from the user's request.
- If the user did not provide a skill name, use AskUserQuestion to ask for one.
- Locate the skill by running the bundled Node script from this skill directory:
```
node ~/.deepcode/skills/skill-digester/scripts/find-skill.js "<skill-name-or-path>" "<project-root>"
```
  If this skill is loaded from a project-level or different user-level path, use the scripts/find-skill.js file next to this SKILL.md instead.
- The script searches the same roots Deep Code CLI scans, in priority order:
  1. Project native skills: ./.deepcode/skills/<folder>/SKILL.md
  2. Project interoperable skills: ./.agents/skills/<folder>/SKILL.md
  3. User native skills: ~/.deepcode/skills/<folder>/SKILL.md
  4. User interoperable skills: ~/.agents/skills/<folder>/SKILL.md
- Treat ./ as the current Deep Code project root only; do not scan parent directories unless the running project root is changed.
- The script resolves each candidate's skill name the way Deep Code does: use the trimmed frontmatter name when present, otherwise use the folder name with underscores converted to hyphens.
- Match the user's input against the resolved skill name first. If needed, also consider the folder name or an explicit path the user provided.
- Treat the matched skill's path as the source SKILL.md to review.
- Treat the matched skill's digestTarget.path as the only output SKILL.md path to create or edit.
- digestTarget.path always points to the same scope's native Deep Code root:
  - Project sources from ./.deepcode/skills or ./.agents/skills digest to ./.deepcode/skills/<folder>/SKILL.md.
  - User sources from ~/.deepcode/skills or ~/.agents/skills digest to ~/.deepcode/skills/<folder>/SKILL.md.
- If the script returns one active match, use its path for reading and digestTarget.path for writing.
- If the script returns active and shadowed matches, present each source path and digest target path, then use AskUserQuestion before using a shadowed source.
- If the script returns no match, state that the skill was not found in Deep Code's scanned skill roots and use AskUserQuestion to ask whether the user wants to try another name.

Read the full file on GitHub · 206 lines

Files

What ships with it

1 file 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.

scripts/find-skill.js 6.3 KB runs code

Changes

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 · 206 lines · 70 tokens per session scan A e616d7348d21

Subscribe to this mod's changes

skill-digester is a skill published in the GitHub repository lessweb/deepcode-cli (2,224 stars, last pushed 4d ago), licensed MIT. It adds 70 tokens to every session and 2,564 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 2026-08-30.

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