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 fzfclee/consulting-skills --skill change-event-timelinegit clone --depth 1 https://github.com/fzfclee/consulting-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/fzfclee/consulting-skills/change-event-timeline)<a href="https://agentmods.dev/skills/fzfclee/consulting-skills/change-event-timeline"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/change-event-timeline/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/fzfclee/consulting-skills/change-event-timeline"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/change-event-timeline.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 | $0.00050 | $0.00720 |
| Opus 5 | $0.00025 | $0.00360 |
| Sonnet 5 | $0.00010 | $0.00144 |
| Haiku 4.5 | $0.00005 | $0.00072 |
Grade A, and why
change-event-timeline 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 12d 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 — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Change Event Timeline
Use this skill to find what changed, when it changed, and which change most likely matters.
Method Notes
- Many diagnoses fail because they treat all facts as equally current.
- A timeline helps distinguish long-standing background facts from recent trigger events.
- The goal is to identify turning points, causal candidates, and validation questions.
Required Inputs
Collect or infer these inputs before execution:
- situation or decision question
- key events and dates or approximate sequence
- before-state and after-state
- stakeholders involved in each event
- observed behavior, decision, metric, or risk change
If an input is missing, mark it as unknown, state the assumption used, and add a validation action.
When Not To Use
Do not use when timing is irrelevant or the decision is purely comparative. Use decision-matrix or weighted-scorecard instead.
Step-by-Step Execution
| Step | Required input | How to execute | Output |
|---|---|---|---|
| Define the before-state | Baseline relationship, process, metric, or expectation. | Describe the stable pattern before the relevant change. | Baseline state. |
| Build event list | Dates, approximate sequence, stakeholder actions, decisions. | Put events in chronological order; include uncertainty when dates are approximate. | Event timeline. |
| Mark turning points | Event list, behavior or outcome change. | Identify events after which behavior, risk, support, urgency, or outcome changed. | Turning-point candidates. |
| Distinguish trigger vs background | Timeline, evidence strength, alternative explanations. | Separate events that merely existed from events that likely changed the system. | Trigger/background classification. |
| Infer causal hypotheses | Turning points, stakeholder moves, external events. | Generate possible explanations that fit the timeline. | Timeline-based hypotheses. |
| Define next evidence | Weak links, unknown dates, missing stakeholder rationale. | Specify what evidence would confirm or weaken the inferred turning point. | Timeline validation plan. |
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.
- 12d ago First seen · 80 lines · 50 tokens per session scan A 72299d6b5bad
change-event-timeline is a skill published in the GitHub repository fzfclee/consulting-skills (4 stars, last pushed 23d ago), licensed Apache-2.0. It adds 50 tokens to every session and 720 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 2026-08-31.
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