observe-skill

observe-skill is a skill for Claude Code, Codex from SecurityTalent/bugskill-ai. It costs 108 tokens per session (846 once invoked), scanned A, original, MIT.

A run log for recording whether a reusable coding skill succeeded, partly worked, or failed, along with useful details from the execution.

In plain words
What is it for?
It helps document skill outcomes, errors, working steps, and unexpected results in a per-skill Markdown file.
Why use it?
It prevents successful and failed runs from being forgotten, making repeated problems and outdated instructions easier to spot.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code.

Good fit It helps document skill outcomes, errors, working steps, and unexpected results in a per-skill Markdown file.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/securitytalent/bugskill-ai/observe-skill
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.

Any agent
npx skills add SecurityTalent/bugskill-ai --skill observe-skill
Clone the repo
git clone --depth 1 https://github.com/SecurityTalent/bugskill-ai

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for observe-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/securitytalent/bugskill-ai/observe-skill/github.svg)](https://agentmods.dev/skills/securitytalent/bugskill-ai/observe-skill)
Your own site
<a href="https://agentmods.dev/skills/securitytalent/bugskill-ai/observe-skill"><img src="https://agentmods.dev/badge/skills/securitytalent/bugskill-ai/observe-skill/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.

agentmods 80×15 button for observe-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/securitytalent/bugskill-ai/observe-skill"><img src="https://agentmods.dev/badge/skills/securitytalent/bugskill-ai/observe-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 846 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00108 $0.00846
Opus 5.5 $0.00043 $0.00338
Sonnet 5.5 $0.00022 $0.00169
Haiku 4.5 $0.00011 $0.00085

Measured 20d ago against content hash a5b71ea02144, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

observe-skill 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 20d 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.

Awesome-Claude-Code-Agent-Skills/09-AI-Security-and-Orchestration/observe-skill/SKILL.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Observe Skill

Purpose

Track how skills perform in practice. A skill that works in theory may miss steps, use outdated payloads, or fire on the wrong triggers in real-world conditions. This skill captures that gap by recording execution outcomes to a per-skill log file.

Trigger Conditions

Activate this skill when the user says any of:

  • "log this run"
  • "skill worked" / "that worked"
  • "skill failed" / "that didn't work" / "this didn't work"
  • "log the outcome"
  • "record this run"
  • After any skill completes and the user describes a result (success, partial, fail)

Methodology

  1. Identify which skill was just used — ask if unclear. The skill name must match a directory name under skills/.
  2. Determine the outcome — success (goal achieved), partial (some steps worked, some didn't), or fail (skill produced no useful result).
  3. Collect details:
    • Date (today's date)
    • Task description (what was the user trying to do?)
    • What specifically worked (payloads, steps, tools that produced results)
    • What specifically failed (steps that produced no result, wrong output, or errors)
    • Any error messages or unexpected responses verbatim
  4. Write the entry — append to observations/<skill-name>/runs.md. Create the file and directory if they don't exist.
  5. Confirm — show the user the appended entry.

Entry Format

---
date: YYYY-MM-DD
skill: <skill-name>
task: <one-line description of what was attempted>
outcome: success | partial | fail
what_worked: |
  <describe what steps, payloads, or approaches produced results>
what_failed: |
  <describe what steps or payloads did not work>
errors: |
  <paste any error messages or unexpected responses>
notes: |
  <any additional context — target type, environment quirks, etc.>
---

Example Interaction

User: "log this run — bola-idor worked, I found a sequential integer ID on /api/orders and was able to read other users' orders using my own session token"

Response: Creates or appends to observations/bola-idor/runs.md:

Read the full file on GitHub · 96 lines

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.

  1. 20d ago First seen · 96 lines · 108 tokens per session scan A a5b71ea02144

Subscribe to this mod's changes

observe-skill is a skill published in the GitHub repository SecurityTalent/bugskill-ai (13 stars, last pushed 21d ago), licensed MIT. It adds 108 tokens to every session and 846 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 2026-09-27.

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