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 instructions/friuns2/codex-mobile/agents-mdgit clone --depth 1 https://github.com/friuns2/codex-mobileWhat 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 | $0.02689 | $0.02689 |
| Opus 5 | $0.01345 | $0.01345 |
| Sonnet 5 | $0.00538 | $0.00538 |
| Haiku 4.5 | $0.00269 | $0.00269 |
Grade A, and why
codex-mobile AGENTS.md 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 2d 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 — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Git Workflow
- Before any merge, rebase, sync, or continuation after interruption, re-check live state:
- feature worktree:
git status --short,git branch --show-current - main worktree:
git status --short - in-progress state:
git status,.git/MERGE_HEAD,.git/rebase-merge,.git/rebase-apply - remote/PR state:
git fetch origin; when a PR may exist,gh pr view --json number,state,mergeStateStatus,isDraft,headRefName,baseRefName,url - branch delta:
git diff --stat main...HEADandgit log --oneline main..HEAD
- feature worktree:
- Keep both worktrees clean before merge/rebase. Checkpoint local changes in main with
git add -A && git commit -m "temp-before-merge-<branch>"; skip only if main is clean. - Prefer GitHub PR update/rebase/merge when a PR or GitHub merge path exists. Use local
mainmerge only when no PR/GitHub path exists or the user explicitly asks for a local merge. - Standard path: commit task, create/switch feature branch, rebase on
main, then use the chosen PR/local merge path. - Never use automatic conflict-bias strategies blindly (
-X theirs,-X ours,git checkout --theirs .,git checkout --ours .). Inspect conflicts intentionally. - Avoid rebasing long-lived mixed-history branches if it pulls broad unrelated conflicts. Abort and use a fresh branch from
mainplus task-relevant cherry-picks. - If
package.json,tests.md, or files undertests/conflict during merge/rebase, start from the local/checkpoint version, then explicitly compare incoming changes and reconcile required updates before continuing. - Before local
mainmerge, diff-compare all branch changes againstmain. - After merge/sync, verify the target really contains the commit with
git branch --contains <commit>,git log --oneline origin/main -10, or a file-level diff againstorigin/main.
Commits
- Commit after each discrete task or sub-task.
- Do not batch unrelated tasks into one commit.
- Use a specific commit message describing the change.
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.
- 2d ago First seen · 119 lines · 2,689 tokens per session scan A 27481dbc0164
codex-mobile AGENTS.md is an instructions file published in the GitHub repository friuns2/codex-mobile (893 stars, last pushed 3mo ago), licensed MIT. It adds 2,689 tokens to every session, about $0.0134 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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