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 agentmods add agents/alexei-led/resume-from/codexgit clone --depth 1 https://github.com/alexei-led/resume-fromWhat 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 | $0.00000 | $0.00375 |
| Opus 5 | $0.00000 | $0.00187 |
| Sonnet 5 | $0.00000 | $0.00075 |
| Haiku 4.5 | $0.00000 | $0.00038 |
Grade A, and why
codex 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.
What it actually says
Codex guide
The Codex plugin adds a /resume-from prompt. The prompt runs the matching
published command package.
Install
codex plugin marketplace add alexei-led/resume-from
codex plugin add resume-from@alexei-led-resume-from
Use Codex CLI or the Codex desktop application. The Codex IDE extension does not install plugins.
Network requirement
The prompt runs a pinned resume-from version through npx --yes. The first
use needs access to the npm registry. Later use can use the local npm cache.
Import a session
- Run
/resume-from. - Read the numbered list.
- Run
/resume-from <row>. - Read the preview.
- Run the token-bearing
/resume-from <row> --confirm <token>command printed by the preview.
Codex cannot move the current process into the new thread. The command prints the new thread ID and the native resume command.
codex resume <thread-id>
Run that command in a terminal.
Filter the source list
List sessions from one agent:
/resume-from claude
/resume-from pi
/resume-from codex
List sessions from one home:
/resume-from --agent codex --home ~/.codex-work
Use --help to show all selectors and options.
/resume-from --help
Use another Codex home
Codex reads CODEX_HOME. The default home is ~/.codex.
Start Codex with another target home:
CODEX_HOME="$HOME/.codex-work" codex
Add other source homes in the shared configuration file.
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.
- yesterday First seen · 71 lines · 0 tokens per session scan A 43d13da5094d
codex is an agent published in the GitHub repository alexei-led/resume-from (5 stars, last pushed 15d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 375 tokens. 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.
Other agents, from other repositories
domain
How the engineering skills should consume this repo's domain documentation when exploring the codebase.
triage-labels
The skills speak in terms of five canonical triage roles. This file maps those roles to the actual label strings used in this repo's issue tracker.
issue-tracker
Issues and PRDs for this repo live as GitHub issues. Use the gh CLI for all operations.
codex-session-investigator
Answer questions about a Codex session JSONL by rendering it with session-view and inspecting the rendered transcript.
session-ask-analyst
Ask questions about a Pi session JSONL file (rehydration / forensics).
reviewer-correctness
Broad correctness and regression reviewer for behavior breakage, boundary/edge-case predicates, API/CLI/devex regressions, feature-gate leaks, migrations, state semantics, and cross-module side effects.