bf-replay skillB
bf-replay is agent-read markdown (skill) from chan4lk/specclaw: Golden-master comparison — replays captured legacy fixtures (.specclaw/baseline/manifest.json + fixtures/) against the new app's own behaviour and reports MATCH/DIVERGES/ERROR per fixture, with four mutually exclusive selection scopes (a change's BL item, a single `--item BL-###` backlog item, a `--module MOD-###` module, or the whole corpus) so a large legacy system can be accepted one item or one module at a time, classifying every divergence in bash as behavioural (the rebuild decided differe.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# specclaw bf-replay **First, run** `specclaw-ensure-init .specclaw` — idempotently creates `.specclaw/` if it doesn't exist (silent if already initialized). Compares the new app's actual behaviour against `.specclaw/baseline/`'s captured golden-master fixtures. This is **not** `/specclaw:verify` — verify checks a change against its own spec/tasks; replay checks the rebuild against the *legacy app's own recorded behaviour*. Neither command modifies the other; do not merge this flow into `verify`. Invocation: ``` /specclaw:bf-replay <change-name> # fixtures behind this change's cited BL item; retains evidence /specclaw:bf-replay --item BL-### # fixtures behind ONE backlog item; no change directory needed /specclaw:bf-replay --module MOD-### # every fixture tagged with that module; retains evidence /specclaw:bf-replay --all # full regression: every fixture in the manifest; retains evidence /specclaw:bf-replay <change-name> --keep # accepted for compatibility — identical to the default …
Read the whole file at its exact version.
How to install
mdr add chan4lk/specclaw/bf-replay@git:20260904.c65816amdr add chan4lk/specclaw/bf-replay@sha256:4e82f1256b60bfb7Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_bumts2egdnonx5mt)
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Versions
Audit of the latest version
- fail: Frontmatter declares a name
- pass: Frontmatter block present
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (53276 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
chan4lk/specclaw · 12 stars · license MIT · pushed 2026-09-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bumts2egdnonx5mt GET https://markdownregistry.com/api/v1/resolve?ref=chan4lk/specclaw/bf-replay GET https://markdownregistry.com/api/v1/blob/4e82f1256b60bfb7c868c9d7376dd8be1d51be0b7301015031276980e10cca9b
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.