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Agent skill

Save Insight

by davekilleen in davekilleen/Dex

Capture a reusable learning from completed work so future similar work is easier.

MITAuto-check passedDevelopment

Install Save Insight

skills CLI
$ npx skills add davekilleen/Dex --skill save-insight -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install davekilleen/Dex save-insight --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/davekilleen/Dex.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/save-insight .claude/skills/save-insight && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
save-insight
GitHub stars
493
Token cost
~753 tokens
SKILL.md length
297 words
Files
1
Skills in repo
61
Repo updated
First seen
Licence
MIT

At a glance

Capture a reusable learning from completed work so future similar work is easier.

  • Works in 4 steps: Reflection Questions → Create or Update Learning Note → Learning Entry Format → …
  • The user says save this learning
  • SKILL.md covers Arguments, Process, Output and Philosophy, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Save Insight is an agent skill from davekilleen/Dex. Capture a reusable learning from completed work so future similar work is easier. Use when the user says 'save this learning', 'capture this insight', or finishes something tricky. Also use proactively after non-routine work. Not for recording a decision and its rationale; use decision-log.

Its SKILL.md is about 750 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Architecture decision records. The repository describes itself as: Your AI Chief of Staff — a personal operating system starter kit that adapts to your role. No coding required. The licence is MIT.

When your agent uses it

  • The user says save this learning
  • Capture this insight
  • Finishes something tricky

Example prompts

  • “save this learning”
  • “capture this insight”
  • “/save-insight”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Reflection Questions
  2. Create or Update Learning Note
  3. Learning Entry Format
  4. Cross-Link (Optional)

What it can do on your machine

Read from SKILL.md and the folder at commit 227f78e. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Save Insight loads about 753 tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 297 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~77
When it runs · the whole SKILL.md, loaded when a task matches
~753

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from davekilleen/Dex at commit 227f78e, republished under its MIT licence (© davekilleen). 297 words, ~753 tokens.

Download SKILL.mdSave it as .claude/skills/save-insight/SKILL.md (or your agent's skills folder).
name
save-insight
description
Capture a reusable learning from completed work so future similar work is easier. Use when the user says 'save this learning', 'capture this insight', or finishes something tricky. Also use proactively after non-routine work. Not for recording a *decision* and its rationale; use `decision-log`.
<!-- Generated from `.claude/skills/save-insight/SKILL.md` by `scripts/generate-agents-skills.py`. Do not edit. -->

Capture what you learned from completing work. This is the "compound" step—making future similar work easier.

Arguments

$WORK_COMPLETED: What did you just complete? (project milestone, tricky problem, meeting, workflow improvement, etc.)

Process

1. Reflection Questions

Ask the user (or extract from recent work context):

  1. What was the situation?

    • Original goal or challenge
    • Why it was harder than expected (if applicable)

  2. What approach worked?

    • Strategy or tactic used
    • Key decisions made

  3. What would you do differently?

    • Gotchas encountered
    • Better approaches discovered late

  4. What's reusable?

    • Patterns that apply elsewhere
    • Mental models that help
2. Create or Update Learning Note

Store in: 06-Resources/Learnings/[Category]_Learnings.md

Categories:

  • Working_Preferences - How you like to work, communication style, tool preferences
  • Mistake_Patterns - Common errors to avoid, with triggers and corrections

Create new category files as needed for domain-specific learnings.

3. Learning Entry Format

Append to the appropriate file:

markdown
---

## [Short Title] — [Date]

**Context:** [1 sentence on what you were doing]

**Challenge:** [What was tricky or non-obvious]

**What Worked:** 
[The approach that succeeded]

**Key Insight:** 
> [The memorable takeaway—something you'd tell past-you]

**See Also:** [Related notes if any]

If the learning relates to:

  • A person → Add to their person page
  • A project → Add link in project's note
  • A recurring workflow → Update relevant template

Output

  1. Ask reflection questions (or extract from context)
  2. Create/update the appropriate learning file
  3. Suggest any cross-links
  4. Confirm saved

Philosophy

"The palest ink is better than the best memory." — Chinese proverb

This isn't documentation for others—it's a gift to future-you. Be specific. Include the gotcha. Make it searchable.

Track Usage (Silent)

Call the mark_feature_used tool on the dex-analytics MCP server with save-insight. This ticks the feature's box in System/usage_log.md, which is what /dex-level-up reads to recommend features that have not been tried. It writes locally and sends nothing, so it runs whether or not analytics is enabled.

Analytics (Silent):

Call track_event with event_name insight_saved and properties:

  • category

This only fires if the user has opted into analytics. No action needed if it returns "analytics_disabled".

© davekilleen, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/save-insight of davekilleen/Dex.

Open the folder on GitHubat commit 227f78e

Compare with similar skills

Save Insight next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Save Insight compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Save Insight this skilldavekilleen/Dex493—~753Automated safety check: PassMIT
PR Design DocOpenHands/OpenHands90k—~2.4kAutomated safety check: PassMIT
Cto AdvisorIbrahim-3d/orchestrator-supaconductor3814 repos~2.4kAutomated safety check: PassMIT
Architecture DecisionDonchitos/Claude-Code-Game-Studios26k—~1.7kAutomated safety check: PassMIT
Improve Codebase Architectureywwynm/EverythingDone14415 repos~1.3kAutomated safety check: PassGPL-3.0
Domain Modelingbrim-borium/spotify_sdk1665 repos~806Automated safety check: PassApache-2.0

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Categories

Questions about Save Insight

What does Save Insight do?

Capture a reusable learning from completed work so future similar work is easier. Save Insight is an agent skill from davekilleen/Dex. Capture a reusable learning from completed work so future similar work is easier.

When should I use Save Insight?

Save Insight fits situations like: the user says save this learning; capture this insight; finishes something tricky.

How do I install Save Insight in Claude Code?

Run `npx skills add davekilleen/Dex --skill save-insight -a claude-code`. Or copy the skill folder (.agents/skills/save-insight in davekilleen/Dex) into .claude/skills/save-insight in your project. Claude Code loads it when a task matches its description.

How do I install Save Insight in Codex?

Run `npx skills add davekilleen/Dex --skill save-insight -a codex`. Or copy the skill folder (.agents/skills/save-insight in davekilleen/Dex) into .agents/skills/save-insight in your project. Codex loads it when a task matches its description.

Can I use Save Insight in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add davekilleen/Dex --skill save-insight -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/save-insight, .gemini/skills/save-insight, .github/skills/save-insight and .opencode/skills/save-insight in your project.

What does Save Insight need to run?

SKILL.md names no scripts, command-line tools or credentials: Save Insight is instructions for the agent only.

Does Save Insight access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Save Insight safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Save Insight use?

Save Insight is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Save Insight use?

About 753 tokens (SKILL.md is roughly 3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Save Insight?

Skills that share tags, products or a category with Save Insight: PR Design Doc (OpenHands/OpenHands, 90k stars), Cto Advisor (Ibrahim-3d/orchestrator-supaconductor, 381 stars), Architecture Decision (Donchitos/Claude-Code-Game-Studios, 26k stars) and Improve Codebase Architecture (ywwynm/EverythingDone, 144 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Save Insight?

davekilleen (a GitHub user) maintains it in davekilleen/Dex, which has 493 GitHub stars. The repository holds 61 skills in this directory. The repository was last updated on October 8, 2026.

Source: davekilleen/Dex on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.