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 davekilleen/Dex --skill identity-snapshotgit clone --depth 1 https://github.com/davekilleen/DexWrote 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/davekilleen/dex/identity-snapshot)<a href="https://agentmods.dev/skills/davekilleen/dex/identity-snapshot"><img src="https://agentmods.dev/badge/skills/davekilleen/dex/identity-snapshot/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/davekilleen/dex/identity-snapshot"><img src="https://agentmods.dev/badge/skills/davekilleen/dex/identity-snapshot.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00074 | $0.00795 |
| Opus 5.5 | $0.00030 | $0.00318 |
| Sonnet 5.5 | $0.00015 | $0.00159 |
| Haiku 4.5 | $0.00007 | $0.00080 |
Grade A, and why
identity-snapshot 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 — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Identity Snapshot
Reads existing Dex data and synthesizes System/identity-model.md — a living document the system writes, not the user. This captures who you are as a professional based on your actual behavior, not self-reported traits.
When to Run
- Manually via
/identity-snapshot - Auto-triggered during
/week-review(append identity model update to review workflow)
Data Sources
Read ALL of the following in parallel before synthesizing:
- Quarter Goals —
01-Quarter_Goals/Quarter_Goals.md- What you're working toward, pillar distribution, ambition level
- Week Priorities —
02-Week_Priorities/Week_Priorities.md- Recent 4 weeks of priorities (look for patterns in what gets prioritized)
- Tasks —
03-Tasks/Tasks.md- Completion patterns, pillar distribution, velocity, what gets blocked
- Session Learnings —
System/Session_Learnings/*.md(last 30 days)- What you've learned, recurring themes
- Mistake Patterns —
06-Resources/Learnings/Mistake_Patterns.md- Known failure modes, triggers, what to watch for
- Skill Ratings —
System/Skill_Ratings/ratings.jsonl- Which skills score highest, what you value in AI interactions
- User Profile —
System/user-profile.yaml- Existing identity data, communication preferences
Synthesis
Write to System/identity-model.md with this structure:
# Identity Model
*Auto-generated by Dex — last updated YYYY-MM-DD*
## Working Patterns
- Pillar balance: [distribution across pillars]
- Priority cadence: [how often priorities shift, what stays stable]
- Task velocity: [completion rate, average items per week]
- Peak focus areas: [what dominates recent weeks]
## Decision Tendencies
- Under pressure: [what gets prioritized vs deprioritized]
- Goal selection: [ambitious vs tactical, how goals evolve]
- Time allocation: [deep work vs meetings vs quick tasks]
## Quality Preferences
- Highest-rated skills: [from ratings.jsonl]
- What "good" looks like: [patterns from high ratings + notes]
- What frustrates: [patterns from low ratings + mistake patterns]
## Growth Areas
- Recurring gaps: [from mistake patterns, things that keep coming up]
- Skills under development: [from learnings, new capabilities being adopted]
- Blind spots: [pillars or areas consistently neglected]
## Communication Style
- Formality: [from profile + observed patterns]
- Decision speed: [fast/deliberate based on task patterns]
- Feedback preference: [from profile]
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 · 78 lines · 74 tokens per session scan A 45081c30fb59
identity-snapshot is a skill published in the GitHub repository davekilleen/Dex (505 stars, last pushed yesterday), licensed MIT. It adds 74 tokens to every session and 795 once invoked, about $0.0003 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 2026-09-03.
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