Add nine coding-agent system prompts captured on the wire (Claude Code, Codex CLI, opencode) - #55
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Claude Code (Opus 5, Fable 5.1 interactive and -p, Opus 4.8), Codex CLI (gpt-5.6-sol, gpt-5.6-luna) and opencode (three distinct templates). Recorded by a local proxy in front of the model API rather than extracted from the shipped bundle, so each is the prompt as the harness assembled it at runtime. Every entry carries the command that reproduces it. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Follow-up to #55. Three changes to each of the nine entries, no change to any captured prompt text: - Label them (unverified, partial). Each capture omits the tool definitions that travelled with the same request, and CONTRIBUTING.md asks for the Partial label when only part of a prompt is captured. The tool and type declarations are in scope for this repo, so their absence belongs in the title rather than a clause at the end of a long note. - Fold the non-standard "Public copy" field into "Source". CONTRIBUTING.md puts the public-source link on the Source line; the header block otherwise matched the documented template exactly. - Drop the capture command from each note, keeping the tool named. The note is for the extraction method, and naming the proxy covers that without carrying its invocation.
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Nine coding-agent system prompts, captured on the wire. Verbatim, one file each, with the index updated in the same PR.
What is here
Anthropic/20260902-Claude-Code-Opus5-interactive.mdclaude-opus-5Anthropic/20260902-Claude-Code-Fable5.1-interactive.mdclaude-fable-5-1Anthropic/20260902-Claude-Code-Fable5.1-print.mdclaude-fable-5-1-pAnthropic/20260902-Claude-Code-Opus4.8-interactive.mdclaude-opus-4-8OpenAI/20260902-Codex-CLI-gpt5.6-sol.mdgpt-5.6-solexecOpenAI/20260902-Codex-CLI-gpt5.6-luna.mdgpt-5.6-lunaexecOpenCode/20260902-opencode-big-pickle.mdbig-picklerunOpenCode/20260902-opencode-muse-spark-1.2.mdmuse-spark-1.2-contributor-freerunOpenCode/20260902-opencode-gpt5.6-sol.mdgpt-5.6-solrunOpenCode/is a new vendor section, added before## Miscellanouswith aSee:line, per CONTRIBUTING.How these were obtained
Not extracted from the shipped bundle — recorded off the wire. A local proxy stands in front of the model API, the harness is launched pointing at it, and the request that carries the prompt is captured as sent. That matters for these three in particular:
-pvariant. The two Fable 5.1 entries are the same harness build minutes apart, and they differ by more than formatting: a different identity line, three sections present in one and absent in the other, and 35 tools against 29.gitStatusblock, working-directory and session material — because they were in the request. A static extraction cannot show them.gpt-5.6-solappears twice here, once through Codex CLI and once through opencode. The prompts are unrelated, and opencode swapsedit/writeforapply_patchon that model while keepingedit/writeon the others.Verifiability
Each entry names the one command that regenerates it, e.g.
node capture/capture.mjs claude --model claude-opus-5, using OrcaReplay (Apache-2.0). Each also links the public copy in that repo, so the text here can be diffed against a second location.The three opencode entries are the three distinct templates measured across seven models on that harness. The other four models produce the
big-pickletext within a few dozen characters and are deliberately left out rather than submitted as near-duplicates.Redaction
Home directory, username, git name and email, gateway host, OS build, e-mail addresses, uuids and hex runs of 32+ are replaced with
{{PLACEHOLDER}}tokens. The replacements are derived from the machine at capture time rather than hard-coded, and the capture aborts rather than writing a file if anything identifying survives the pass. Nothing else is reworded, reordered or removed — the prompts are otherwise byte-for-byte as sent. The character counts above are the prompt on the wire; each file on disk is a few hundred shorter because the placeholders are shorter than the paths they replace.Titles keep
(unverified): the source I can point at is my own repository, which is not independent corroboration. The reproduction command is the stronger claim, and anyone with the harness installed can run it.Disclosure: I work on OrcaReplay, the tool used to capture these.
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