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 magnus919/agent-skills --skill observergit clone --depth 1 https://github.com/magnus919/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/magnus919/agent-skills/observer)<a href="https://agentmods.dev/skills/magnus919/agent-skills/observer"><img src="https://agentmods.dev/badge/skills/magnus919/agent-skills/observer/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/magnus919/agent-skills/observer"><img src="https://agentmods.dev/badge/skills/magnus919/agent-skills/observer.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 100 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 | $0.00030 | $0.01008 |
| Opus 5 | $0.00015 | $0.00504 |
| Sonnet 5 | $0.00006 | $0.00202 |
| Haiku 4.5 | $0.00003 | $0.00101 |
Grade A, and why
observer 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 3d 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 — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Observer — Passive Workflow Discovery
This is the passive observation mode of workflow-architect. Unlike the interviewer, which asks questions, the observer watches and infers.
How It Works
- The observer loads silently via
/workflow-architect passive - It does nothing until a trigger phrase is detected
- On trigger, it scans the current session's message history using a structured inference prompt
- The output is a workflow state model (same structure as the interviewer produces), which feeds into the bundle-builder sub-skill
Trigger Phrases
The observer activates when the user says any of these:
- "catalog my workflow"
- "what's my workflow"
- "analyze my process"
- "figure out what I do"
- "work it out from what I just did"
If none of these are detected in the user's message, the observer remains dormant. Do not announce its presence — the user may not remember loading it in passive mode.
Activation Protocol
When a trigger phrase is detected:
-
Check session depth. Count substantive user messages (excluding greetings, meta-comments about the agent, and one-word replies). If fewer than 5 substantive messages, respond:
"I don't have enough session context to work with yet. I've seen about [N] substantive turns, and I need more to find reliable patterns. Try active interrogation mode instead: /workflow-architect" -
If enough context exists, run inference. Use the following structured prompt against the session context. You may use session_search or browser console to review the session transcript if needed.
You are analyzing a session transcript to extract workflow patterns. Look at the user's messages and your responses. Identify: 1. ENTRY PATTERNS — How did the session start? What was the user's first request? Was it a check-in, a specific task, a question? 2. PHASES — Where did the session shift focus? What triggered each shift? (A new request, a status check, a tool output?) 3. BRANCHING — Were there decision points where the user could have gone in different directions? What determined the direction taken? 4. TOOLS — What tools did the user reach for? What commands did they ask you to run? What contexts did they reference? 5. PAIN POINTS — Were there moments of friction? (Repeated corrections, stops-and-restarts, "no, not that" type corrections) 6. EXIT — How did the session end (or approach ending)? Was it a natural completion, an interruption, or something else? Return your findings as a structured JSON document matching the workflow-architect state model format.
What ships with it
2 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.
- 3d ago First seen · 116 lines · 30 tokens per session scan A 54116234abd9
observer is a skill published in the GitHub repository magnus919/agent-skills (75 stars, last pushed today), licensed MIT. It adds 30 tokens to every session and 1,008 once invoked, about $0.0002 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 2026-09-05.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
local-ai-agents
Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…
next-cache-components-adoption
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…
next-cache-components-optimizer
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…
next-partial-prefetching-adoption
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…
chronicle
Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting…