chore: org rename fai-modules/fai-plugins -> chain-modules/chain-plugins + LICENSE holder

Signed-off-by: flemming-it <sf@flemming.it>

.forgejo/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
           git fetch --depth=1 origin "$GITHUB_SHA"
           git checkout -q FETCH_HEAD
 
-      # The fai-module-sdk dependency is a git dep against a repo
+      # The chain-module-sdk dependency is a git dep against a repo
       # that lives in another Forgejo org. The repo-scoped
       # GITHUB_TOKEN cannot read it, and the Forgejo instance has
       # REQUIRE_SIGNIN_VIEW=true so anonymous read is also denied.

.forgejo/workflows/sign.yml

@@ -0,0 +1,223 @@
+# F∆I module bundle signing workflow (cosign key-pinning model).
+#
+# Drop-in template for any module repo under chain-modules/.
+# Triggers on tag push (vX.Y.Z) — builds the module, packs the
+# .fai bundle, signs the bundle bytes with the Flemming.AI
+# signing key (ECDSA P-256), and attaches bundle + .sig sidecar
+# to the matching Forgejo Release.
+#
+# The hub-side verifier ships in 0.12.0+: when an operator sets
+# `require_signatures: true`, install downloads the .sig sidecar
+# from `<wasm_url>.sig` and verifies it against the pinned store
+# public key (built-in for `bundled` / `official`, per-store
+# config for everything else).
+#
+# Adopt by copying this file to `.forgejo/workflows/sign.yml` in
+# the module repo and replacing the MODULE_NAME placeholder.
+# Add the signing key to Forgejo secrets as FAI_SIGNING_KEY (PEM,
+# unencrypted, ECDSA P-256). Rotation is a 5-minute key-roll +
+# binary re-release; see infra/cosign/README.md.
+
+name: sign-bundle
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_TOOLCHAIN: "1.86"
+  CARGO_NET_GIT_FETCH_WITH_CLI: "true"
+
+jobs:
+  sign:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write    # attach signature to release
+
+    env:
+      # The canonical module name as written in module.yaml.
+      # Used in the bundle filename + wasm path.
+      MODULE_NAME: text-extract
+
+    steps:
+      # See fai/platform CI for background on the manual external
+      # checkout: the DinD runner cannot resolve forgejo:3000, so
+      # we clone via the external URL with $GITHUB_TOKEN.
+      - name: Checkout via external URL
+        run: |
+          set -eu
+          mkdir -p "$GITHUB_WORKSPACE"
+          cd "$GITHUB_WORKSPACE"
+          git init -q
+          git remote add origin \
+            "https://x-access-token:${GITHUB_TOKEN}@git.flemming.ai/${GITHUB_REPOSITORY}.git"
+          git fetch --depth=1 origin "$GITHUB_SHA"
+          git checkout -q FETCH_HEAD
+
+      # The chain-module-sdk dependency lives in another Forgejo org
+      # behind REQUIRE_SIGNIN_VIEW. MODULE_SDK_PAT (org-level
+      # secret, read-only on fai/module-sdk) authenticates cargo's
+      # git fetch via insteadOf.
+      - name: Configure git URL rewrite for SDK fetch
+        env:
+          SDK_PAT: ${{ secrets.MODULE_SDK_PAT }}
+        run: |
+          git config --global \
+            "url.https://x-access-token:${SDK_PAT}@git.flemming.ai/.insteadOf" \
+            "https://git.flemming.ai/"
+
+      - name: Install system dependencies
+        run: |
+          apt-get update -qq
+          apt-get install -y --no-install-recommends \
+            curl \
+            ca-certificates \
+            build-essential \
+            pkg-config \
+            libssl-dev \
+            git \
+            jq \
+            openssl
+
+      - name: Install Rust toolchain
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
+            | sh -s -- -y \
+              --profile minimal \
+              --default-toolchain "$RUST_TOOLCHAIN" \
+              --target wasm32-wasip2
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+
+      - name: Build module (wasm32-wasip2)
+        run: cargo build --release --target wasm32-wasip2
+
+      - name: Install fai CLI
+        # Pinned to the production channel; signing requires the
+        # `fai pack` command. Override FAI_VERSION when bundle
+        # format compatibility matters.
+        run: |
+          curl -fsSL https://get.chain.flemming.ai | sh -s -- --no-bootstrap
+          # The installer drops fai at $HOME/.local/bin
+          echo "$HOME/.local/bin" >> "$GITHUB_PATH"
+          export PATH="$HOME/.local/bin:$PATH"
+          fai --version
+
+      - name: Stage bundle inputs
+        # The wasm artefact is named after the Cargo package
+        # (underscored), which may differ from the module name
+        # in module.yaml (dashed). Resolve it from Cargo.toml so
+        # the template stays agnostic to the project's naming
+        # convention.
+        run: |
+          set -eu
+          CARGO_NAME=$(grep -E '^name *= *"' Cargo.toml \
+            | head -1 | sed 's/.*"\(.*\)".*/\1/')
+          mkdir -p staging
+          cp module.yaml staging/
+          cp "target/wasm32-wasip2/release/${CARGO_NAME}.wasm" staging/module.wasm
+          if [ -f sbom.cdx.json ]; then cp sbom.cdx.json staging/; fi
+          if [ -f MODULE.md ]; then cp MODULE.md staging/; fi
+          if [ -f MODULE.de.md ]; then cp MODULE.de.md staging/; fi
+
+      - name: Pack bundle
+        id: pack
+        run: |
+          export PATH="$HOME/.local/bin:$PATH"
+          BUNDLE="${{ env.MODULE_NAME }}-${{ github.ref_name }}.fai"
+          fai pack staging --output "$BUNDLE"
+          echo "bundle=$BUNDLE" >> "$GITHUB_OUTPUT"
+          ls -la "$BUNDLE"
+
+      - name: Sign bundle (Flemming.AI signing key)
+        env:
+          FAI_SIGNING_KEY_PEM: ${{ secrets.FAI_SIGNING_KEY }}
+        run: |
+          if [ -z "${FAI_SIGNING_KEY_PEM:-}" ]; then
+            cat >&2 <<'EOF'
+
+          FAI_SIGNING_KEY secret is empty or undefined.
+
+          This workflow signs module bundles with the Flemming.AI
+          module-signing key (ECDSA P-256, PKCS#8 PEM, unencrypted).
+          The matching public key is pinned in the fai-hub binary at
+          infra/cosign/official.pub — hubs that require_signatures
+          will reject anything not signed with this key.
+
+          To configure:
+            1. Forgejo -> chain-modules org -> Settings -> Secrets
+            2. Add secret FAI_SIGNING_KEY (org-level recommended)
+            3. Paste the unencrypted PEM (BEGIN PRIVATE KEY ...)
+          The encrypted source-of-truth lives on Stefan's Mac at
+          ~/.fai-secrets/flemming-ai-signing.key (passphrase in
+          mSecure under "Ch∆In — Module Signing Key (Private)").
+
+          See fai/platform infra/cosign/OPERATOR-HANDOFF.md for the
+          full setup runbook and rotation process.
+          EOF
+            exit 1
+          fi
+          umask 077
+          echo "$FAI_SIGNING_KEY_PEM" > /tmp/signing-key.pem
+          openssl dgst -sha256 \
+            -sign /tmp/signing-key.pem \
+            -out "${{ steps.pack.outputs.bundle }}.sig.raw" \
+            "${{ steps.pack.outputs.bundle }}"
+          base64 < "${{ steps.pack.outputs.bundle }}.sig.raw" \
+            > "${{ steps.pack.outputs.bundle }}.sig"
+          rm "${{ steps.pack.outputs.bundle }}.sig.raw"
+          shred -u /tmp/signing-key.pem || rm -f /tmp/signing-key.pem
+          ls -la "${{ steps.pack.outputs.bundle }}.sig"
+
+      - name: Round-trip verify
+        # Sanity-check: the freshly-signed bundle must verify
+        # against the well-known public key before we publish it.
+        run: |
+          curl -fsSL https://git.flemming.ai/fai/platform/raw/branch/main/infra/cosign/official.pub \
+            -o /tmp/official.pub
+          openssl dgst -sha256 \
+            -verify /tmp/official.pub \
+            -signature <(base64 -d < "${{ steps.pack.outputs.bundle }}.sig") \
+            "${{ steps.pack.outputs.bundle }}"
+
+      - name: Attach bundle + signature to Forgejo Release
+        run: |
+          set -eu
+          BUNDLE="${{ steps.pack.outputs.bundle }}"
+          SIG="$BUNDLE.sig"
+          REL_JSON=$(curl -sS \
+            -H "Authorization: token ${GITHUB_TOKEN}" \
+            "https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/tags/${GITHUB_REF_NAME}")
+          REL_ID=$(echo "$REL_JSON" | jq -r '.id // empty')
+          if [ -z "$REL_ID" ] || [ "$REL_ID" = "null" ]; then
+            REL_ID=$(curl -sS -X POST \
+              -H "Authorization: token ${GITHUB_TOKEN}" \
+              -H "Content-Type: application/json" \
+              "https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases" \
+              -d "{\"tag_name\":\"${GITHUB_REF_NAME}\",\"name\":\"${GITHUB_REF_NAME}\",\"draft\":false,\"prerelease\":false,\"body\":\"Auto-generated by sign-bundle workflow\"}" \
+              | jq -r '.id')
+          fi
+          upload_one() {
+            local asset_path="$1" asset
+            asset=$(basename "$asset_path")
+            EXISTING=$(curl -sS \
+              -H "Authorization: token ${GITHUB_TOKEN}" \
+              "https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/${REL_ID}/assets" \
+              | jq -r ".[] | select(.name==\"${asset}\") | .id")
+            if [ -n "$EXISTING" ]; then
+              curl -sS -X DELETE \
+                -H "Authorization: token ${GITHUB_TOKEN}" \
+                "https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/${REL_ID}/assets/${EXISTING}" \
+                || true
+            fi
+            curl -sS -X POST \
+              -H "Authorization: token ${GITHUB_TOKEN}" \
+              -F "attachment=@${asset_path}" \
+              "https://git.flemming.ai/api/v1/repos/${GITHUB_REPOSITORY}/releases/${REL_ID}/assets?name=${asset}" \
+              > /dev/null
+            echo "uploaded $asset"
+          }
+          upload_one "$BUNDLE"
+          upload_one "$SIG"
+          echo "release ${GITHUB_REF_NAME} ready: https://git.flemming.ai/${GITHUB_REPOSITORY}/releases/tag/${GITHUB_REF_NAME}"

Cargo.lock

@@ -77,6 +77,28 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
+[[package]]
+name = "chain-module-sdk"
+version = "0.1.2"
+source = "git+https://git.flemming.ai/fai/chain-module-sdk-rust.git?branch=main#98e98e9371f7409560a1ef08bc0923d9a2506449"
+dependencies = [
+ "chain-module-sdk-macros",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "wit-bindgen",
+]
+
+[[package]]
+name = "chain-module-sdk-macros"
+version = "0.1.2"
+source = "git+https://git.flemming.ai/fai/chain-module-sdk-rust.git?branch=main#98e98e9371f7409560a1ef08bc0923d9a2506449"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.5.0"
@@ -167,28 +189,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "fai-module-sdk"
-version = "0.1.2"
-source = "git+https://git.flemming.ws/fai/module-sdk.git?branch=main#f209fbc86f531b53e576f3cdbdf75750eef3b07a"
-dependencies = [
- "fai-module-sdk-macros",
- "serde",
- "serde_json",
- "thiserror",
- "wit-bindgen",
-]
-
-[[package]]
-name = "fai-module-sdk-macros"
-version = "0.1.2"
-source = "git+https://git.flemming.ws/fai/module-sdk.git?branch=main#f209fbc86f531b53e576f3cdbdf75750eef3b07a"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "flate2"
 version = "1.1.9"
@@ -508,7 +508,7 @@ dependencies = [
 name = "text_extract"
 version = "0.1.5"
 dependencies = [
- "fai-module-sdk",
+ "chain-module-sdk",
  "pdf-extract",
  "quick-xml",
  "serde",

Cargo.toml

@@ -7,18 +7,18 @@
 name = "text_extract"
 version = "0.1.5"
 edition = "2024"
-authors = ["Dr. Stefan Flemming <platform@flemming.ai>"]
+authors = ["Dr. Stefan Flemming <chain@flemming.ai>"]
 license = "Apache-2.0"
 publish = false
 description = "F∆I module — extract plain text from PDF and DOCX documents"
-repository = "https://git.flemming.ws/fai-modules/text-extract"
+repository = "https://git.flemming.ws/chain-modules/text-extract"
 rust-version = "1.85"
 
 [lib]
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-fai-module-sdk = { git = "https://git.flemming.ws/fai/module-sdk.git", branch = "main" }
+chain-module-sdk = { git = "https://git.flemming.ai/fai/chain-module-sdk-rust.git", branch = "main" }
 serde = { version = "1", features = ["derive"] }
 pdf-extract = "0.7"
 zip = { version = "2", default-features = false, features = ["deflate"] }

LICENSE

@@ -58,7 +58,7 @@ APPENDIX: How to apply the Apache License to your work.
 
 To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!)  The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives.
 
-Copyright 2026 fai-modules
+Copyright 2026 Flemming.AI
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

MODULE.de.md

@@ -0,0 +1,96 @@
+# text.extract
+
+Reine Textextraktion aus PDF- und DOCX-Dokumenten. Pure-Rust,
+in-WASM, ohne deklarierte Berechtigungen. Der kanonische erste
+Schritt in Flows, die Rohtext brauchen — anonymisieren,
+zusammenfassen, übersetzen, per LLM klassifizieren,
+Audit-redigieren.
+
+## Capability
+
+- `text.extract@0.1.0`
+
+## Eingaben
+
+| Name       | Typ   | Beschreibung                                            |
+| ---------- | ----- | ------------------------------------------------------- |
+| `document` | bytes | Das zu extrahierende Dokument. MIME-Typen siehe unten.  |
+
+Akzeptierte MIME-Typen (deklariert in
+`module.yaml#accepts_mime`, von Studio als File-Picker-Filter
+gelesen):
+
+- `application/pdf`
+- `application/x-pdf`
+- `application/vnd.openxmlformats-officedocument.wordprocessingml.document`
+
+Andere MIME-Typen werden mit `invalid_input` abgelehnt — vor
+jedem Parsen.
+
+## Ausgabe
+
+| Name        | Typ  | Beschreibung                                  |
+| ----------- | ---- | --------------------------------------------- |
+| `extracted` | json | `ExtractedDocument`-Schema siehe unten.       |
+
+```json
+{
+  "engine": "pdf-extract",
+  "engine_version": "0.7",
+  "pages": [
+    { "number": 1, "text": "…" }
+  ]
+}
+```
+
+`confidence` und `bbox` pro Seite sind im Schema für eine
+spätere Service-Mode-Variante (pdfium / mupdf via
+Host-Services) reserviert. v0.1.0 setzt diese Felder nicht;
+das Schema akzeptiert sie als optional.
+
+## Berechtigungen
+
+Keine. Reine Rust-Pipeline (`pdf-extract`, `zip`, `quick-xml`).
+Kein Dateisystem, kein Netz. `permissions: []` in
+`module.yaml` macht das explizit; der Hub erzwingt es.
+
+## Grenzen in v0.1.0
+
+- **Layout-naives PDF.** Mehrspaltige oder tabellenlastige
+  Dokumente können umsortierten Text liefern. Ein-Spalten-
+  Fließtext ist solide.
+- **Kein OCR.** Gescannte (nur-Bild-)PDFs liefern pro Seite
+  leeren Text. Künftiges `text.ocr@^0` als Vor-Schritt.
+- **Nur DOCX bei Office.** `.doc` (Altformat), `.rtf`, `.odt`
+  noch nicht unterstützt.
+
+`1.0.0` setzt entweder die Service-Mode-Variante
+(pdfium-Qualität + Layout) voraus oder einen
+nachgewiesen-guten Extraktions-Score auf einem
+repräsentativen Korpus.
+
+## Beispiel-Flow
+
+```yaml
+name: extract-anonymise
+inputs:
+  document: bytes
+steps:
+  - id: extract
+    use: text.extract@^0
+    with:
+      document: $inputs.document
+  - id: redact
+    use: text.anonymize@^0
+    with:
+      text: $extract.extracted.pages[*].text
+outputs:
+  redacted: $redact.anonymized
+```
+
+## Build
+
+```bash
+cargo build --release --target wasm32-wasip2
+# Ausgabe: target/wasm32-wasip2/release/text_extract.wasm
+```

MODULE.md

@@ -0,0 +1,92 @@
+# text.extract
+
+Plain-text extraction from PDF and DOCX documents. Pure-Rust,
+in-WASM, no permissions required. The canonical first step in
+any flow that needs raw text — anonymise, summarise, translate,
+LLM-classify, audit-redact.
+
+## Capability
+
+- `text.extract@0.1.0`
+
+## Inputs
+
+| Name       | Type  | Description                                            |
+| ---------- | ----- | ------------------------------------------------------ |
+| `document` | bytes | The document to extract. Accepted MIME types below.    |
+
+Accepted MIME types (declared in `module.yaml#accepts_mime`,
+read by Studio as the file-picker filter):
+
+- `application/pdf`
+- `application/x-pdf`
+- `application/vnd.openxmlformats-officedocument.wordprocessingml.document`
+
+Other MIME types are rejected with a `invalid_input` error
+before any parsing happens.
+
+## Output
+
+| Name        | Type | Description                                       |
+| ----------- | ---- | ------------------------------------------------- |
+| `extracted` | json | `ExtractedDocument` schema below.                 |
+
+```json
+{
+  "engine": "pdf-extract",
+  "engine_version": "0.7",
+  "pages": [
+    { "number": 1, "text": "…" }
+  ]
+}
+```
+
+Per-page `confidence` and `bbox` fields are reserved in the
+schema for a future service-mode variant (pdfium / mupdf via
+host services) that surfaces layout information. v0.1.0 does
+not populate them; the schema accepts them as optional.
+
+## Permissions
+
+None. Pure-Rust pipeline (`pdf-extract`, `zip`, `quick-xml`).
+No filesystem, no network. The empty `permissions: []` in
+`module.yaml` makes that explicit; the hub enforces it.
+
+## Limits in v0.1.0
+
+- **Layout-naive PDF.** Multi-column or table-heavy documents
+  may produce reordered text. Single-column body text is solid.
+- **No OCR.** Scanned (image-only) PDFs return empty text per
+  page. Pair with a future `text.ocr@^0` step for those.
+- **DOCX-only Office.** `.doc` (legacy binary), `.rtf`, `.odt`
+  are not yet supported.
+
+Bumping to `1.0.0` requires either the service-mode variant
+(pdfium-quality output + layout) or a confirmed-good extraction
+score on a representative corpus.
+
+## Example flow
+
+```yaml
+name: extract-anonymise
+inputs:
+  document: bytes
+steps:
+  - id: extract
+    use: text.extract@^0
+    with:
+      document: $inputs.document
+  - id: redact
+    use: text.anonymize@^0
+    with:
+      text: $extract.extracted.pages[*].text
+outputs:
+  redacted: $redact.anonymized
+```
+
+## Build
+
+```bash
+cargo build --release --target wasm32-wasip2
+# Output: target/wasm32-wasip2/release/text_extract.wasm
+```

README.md

@@ -45,7 +45,7 @@ The build depends on a sibling checkout of `fai/module-sdk`:
     └── text-extract/           # this repo
 ```
 
-This is a temporary path-based dependency. Once `fai-module-sdk`
+This is a temporary path-based dependency. Once `chain-module-sdk`
 is published to a registry or a stable git tag, this module's
 `Cargo.toml` will switch over. The Forgejo CI workflow checks out
 the SDK repo into a sibling directory before building.
@@ -81,5 +81,5 @@ integration test.
 
 Apache-2.0. See `LICENSE`.
 
-Author: Dr. Stefan Flemming, Flemming.AI <platform@flemming.ai>
-Repository: https://git.flemming.ws/fai-modules/text-extract
+Author: Dr. Stefan Flemming, Flemming.AI <chain@flemming.ai>
+Repository: https://git.flemming.ws/chain-modules/text-extract

module.yaml

@@ -1,4 +1,5 @@
-schema_version: 1
+schema_version: 3
+provider: chain
 name: text-extract
 version: 0.1.0
 
@@ -9,19 +10,35 @@ provides:
 
 # Inputs the invoke function accepts.
 inputs:
-  # The document to extract text from. Supported MIME types:
-  #   application/pdf
-  #   application/x-pdf
-  #   application/vnd.openxmlformats-officedocument.wordprocessingml.document
-  document: bytes
+  document:
+    type: bytes
+    description:
+      en: |
+        The document to extract text from. Supported MIME types:
+          application/pdf
+          application/x-pdf
+          application/vnd.openxmlformats-officedocument.wordprocessingml.document
+      de: |
+        Das Dokument, aus dem Text extrahiert werden soll. Unterstützte MIME-Typen:
+          application/pdf
+          application/x-pdf
+          application/vnd.openxmlformats-officedocument.wordprocessingml.document
 
 # Outputs produced.
 outputs:
-  # JSON-encoded ExtractedDocument:
-  #   { engine, engine_version, pages: [{number, text, confidence?, bbox?}] }
-  # confidence and bbox are reserved for a future service-mode variant
-  # (pdfium / mupdf via host services). v0.1.0 omits them.
-  extracted: json
+  extracted:
+    type: json
+    description:
+      en: |
+        JSON-encoded ExtractedDocument:
+          { engine, engine_version, pages: [{number, text, confidence?, bbox?}] }
+        confidence and bbox are reserved for a future service-mode variant
+        (pdfium / mupdf via host services). v0.1.0 omits them.
+      de: |
+        JSON-codiertes ExtractedDocument:
+          { engine, engine_version, pages: [{number, text, confidence?, bbox?}] }
+        confidence und bbox sind für eine künftige Service-Mode-Variante reserviert
+        (pdfium / mupdf über Host-Services). v0.1.0 liefert sie nicht.
 
 # Permissions required.
 #
@@ -29,3 +46,13 @@ outputs:
 # zip, quick-xml). No filesystem, no network. The empty list makes
 # this explicit; the hub enforces it.
 permissions: []
+
+# MIME-type allow-list for the `document` input. Studio reads this
+# through ModuleInfoResponse.accepts_mime and uses it as the OS
+# file-picker filter so operators don't accidentally pick a `.png`
+# for a PDF-extract step. Same list documented inline next to
+# `inputs.document` above; kept synchronised by hand for now.
+accepts_mime:
+  - application/pdf
+  - application/x-pdf
+  - application/vnd.openxmlformats-officedocument.wordprocessingml.document

src/lib.rs

@@ -39,7 +39,7 @@
 
 #![allow(clippy::result_large_err)]
 
-use fai_module_sdk::prelude::*;
+use chain_module_sdk::prelude::*;
 use serde::Serialize;
 
 const PDF_MIME: &str = "application/pdf";

tests/docx_roundtrip.rs

@@ -16,7 +16,7 @@
 
 use std::io::Write;
 
-use fai_module_sdk::prelude::*;
+use chain_module_sdk::prelude::*;
 use serde::Deserialize;
 use text_extract::invoke;