thread

A method for tracing how the user's view of a topic changed over time by finding past mentions, arranging them by date, and identifying turning points.

In plain words
What is it for?
Use it to examine the history of a project, person, decision, or question when there are enough past references to show a meaningful progression.
Why use it?
It turns scattered conversation history into an explanation of how a decision or opinion developed.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/ghostwright/phantom/thread
Any agent
npx skills add ghostwright/phantom --skill thread
Clone the repo
git clone --depth 1 https://github.com/ghostwright/phantom

Made for: Claude Code, Codex.

Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,032 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00025 $0.01032
Opus 5 $0.00013 $0.00516
Sonnet 5 $0.00005 $0.00206
Haiku 4.5 $0.00003 $0.00103

Measured yesterday against content hash 065661998456, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

thread 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 yesterday.

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.

skills-builtin/thread/SKILL.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Thread: the evolution of thinking

Inputs

  • $topic: the specific topic the user wants to trace. Could be a project name, a decision, a person, a product, a question.

Goal

Pull every mention of a specific topic from memory across sessions and channels, order them chronologically, cluster by time period and sub-theme, identify turning points where the user's view changed, and render as a narrative of evolution.

Not a log. Not a summary. A view of the shape of how the user changed their mind. The user should come away thinking "that is what I was actually doing, and I did not see it that clearly before."

Steps

1. Search memory for the topic

Call mcp__phantom-reflective__phantom_memory_search with query: "$topic", memory_type: "all", limit: 30. Do NOT pass days_back. We want the full history.

Success criteria: you have at least three hits for the topic. If you have zero or one, tell the user honestly and stop ("I do not have enough history on this topic yet to build an arc. It looks like this is the first time you are raising it.").

2. Order and cluster chronologically

Sort the hits by their started_at or valid_from timestamp. Cluster them by time period:

  • If the hits span less than 14 days, cluster by day.
  • If they span 14 to 90 days, cluster by week.
  • If they span more than 90 days, cluster by month.

Within each cluster, look for sub-themes. A single cluster might split into "technical concerns" and "people concerns" if both appear in the same week.

Success criteria: you have 2-6 time clusters with the hits assigned to each.

3. Identify turning points

Re-read the clusters in order. Mark a turning point when:

  • The user's stated view of the topic visibly changed.
  • New information landed that the user acknowledged shifted things.
  • A decision was explicitly made ("I decided to", "we are going with").
  • A commitment was made or withdrawn.
  • An emotional tone shifted (frustration to calm, curiosity to conviction).

Read the full file on GitHub · 84 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. yesterday First seen · 84 lines · 25 tokens per session scan A 065661998456

Subscribe to this mod's changes

thread is a skill published in the GitHub repository ghostwright/phantom (1,463 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 25 tokens to every session and 1,032 once invoked, about $0.0001 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 2026-08-30.

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